[Shortcut Guide] Add support for Greenshot (#49407)

## Summary of the Pull Request

Adds a Shortcut Guide manifest for **Greenshot**.

- **New manifest:**
`src/modules/ShortcutGuide/ShortcutGuide.Ui/Assets/ShortcutGuide/Manifests/Greenshot.Greenshot.en-US.yml`:
32 shortcuts for `Greenshot.exe`, grouped into five sections:
* **Capture:** Capture region, Capture last region, Capture window,
Capture fullscreen, Capture Internet Explorer tab
* **While selecting a region:** switch region/window mode, select a
child window element, toggle magnifier, confirm selection, cancel
capture
* **Editor - draw:**
rectangle/ellipse/line/arrow/freehand/highlight/obfuscate/crop/text/selection
tools, enlarge screenshot, crop to visible elements, paste image from
clipboard
* **Editor - text:** insert line break, delete previous word, select all
text, finish editing
* **Editor - export:** save, save as, copy image to clipboard, print,
e-mail
- **No code changes.** The manifest is auto-included via the existing
`Manifests/*.yml` glob in `ShortcutGuide.Ui.csproj`.
- `BackgroundProcess: true`, matching the bundled PowerToys-itself
manifest, since Greenshot's core value is its global capture hotkeys,
which work regardless of the currently focused window.
- Introduces a `<PrtScn>` token for the Print Screen key (not previously
needed by any bundled manifest, since Greenshot's capture shortcuts are
all built around it) alongside the existing `<Space>`, `<Enter>`,
`<Esc>`, `<Backspace>`, `<PageDown>` named-key tokens.

## PR Checklist

- [ ] **Closes:** #ISSUE_NUMBER
- [ ] **Communication:** discussed in the linked issue
- [ ] **Tests:** N/A for data; relies on the existing manifest
deserialization path
- [x] **Localization:** all end-user-facing strings can be localized
- [ ] **Dev docs:** N/A, no schema changes
- [ ] **New binaries:** N/A
- [ ] **Documentation updated:** N/A
- [x] **Local run:** see issue screenshot

## Detailed Description of the Pull Request / Additional comments

The Shortcut Guide displays per-app shortcuts from YAML manifests,
matched to the foreground window (or shown continuously for background
processes) via `WindowFilter`/`BackgroundProcess`. Adding support for an
app is purely additive: drop a `<PackageName>.<locale>.yml` file in the
`Manifests` folder and it's picked up by the existing build glob and
index generator.

- `PackageName: Greenshot.Greenshot` is the WinGet package identifier;
`WindowFilter: "Greenshot.exe"` is the process name (confirmed against a
signed 1.3.315 build).
- `Name: Greenshot` is the display name shown in the Shortcut Guide app
picker.
- Shortcut names follow the repo's sentence-case convention (capitalize
only the first word plus proper nouns/product names).
- Five shortcuts are marked `Recommended`: Capture region, Capture last
region, Capture window, Save, Copy image to clipboard — the capture and
export actions used most often.
- Shortcut source: Greenshot's official help page
(https://getgreenshot.org/help/), cross-checked against the unofficial
`defkey.com` reference.

## Validation Steps Performed

- **Source fidelity:** every shortcut and modifier combination matches
the official Greenshot help page one-to-one; no unofficial-source
shortcuts were added without confirming them against the official page.

--- 

Closes #49406

---------

Co-authored-by: Korb <korwin+git@pm.me>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Muyuan Li <116717757+MuyuanMS@users.noreply.github.com>

.github/actions/spell-check/expect.txt

@@ -143,8 +143,8 @@ BITMAPINFO
 BITMAPINFOHEADER
 BITSPERPEL
 BITSPIXEL
-Blackmagic
 bla
+Blackmagic
 BLENDFUNCTION
 blittable
 Blockquotes
@@ -411,8 +411,8 @@ devmgmt
 DEVMODE
 DEVMODEW
 DEVNODES
-devpal
 devpackages
+devpal
 DEVTYP
 dfx
 DIALOGEX
@@ -552,9 +552,9 @@ extensionsdk
 EXTRALIGHT
 EXTRINSICPROPERTIES
 eyetracker
+Fairlight
 FANCYZONESDRAWLAYOUTTEST
 FANCYZONESEDITOR
-Fairlight
 FARPROC
 fdw
 fdx
@@ -657,6 +657,7 @@ GRABANDMOVEMODULEINTERFACE
 gradians
 GRC
 grctlext
+Greenshot
 GRGX
 Gridcustomlayout
 gridlines
@@ -1655,6 +1656,7 @@ selfhost
 SENDCHANGE
 sendvirtualinput
 serverside
+SETAUTOHIDEBAREX
 SETBUDDYINT
 SETCONTEXT
 SETCURSEL
@@ -1668,7 +1670,6 @@ SETPOWEROFFACTIVE
 SETRANGE
 SETREDRAW
 SETRULES
-SETAUTOHIDEBAREX
 SETSCREENSAVEACTIVE
 SETSTICKYKEYS
 SETTEXT

src/modules/ShortcutGuide/ShortcutGuide.Ui/Assets/ShortcutGuide/Manifests/Greenshot.Greenshot.en-US.yml

@@ -0,0 +1,276 @@
+PackageName: Greenshot.Greenshot
+Name: Greenshot
+WindowFilter: "Greenshot.exe"
+BackgroundProcess: true
+Shortcuts:
+  - SectionName: Capture
+    Properties:
+      - Name: Capture region
+        Recommended: true
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - <PrtScr>
+      - Name: Capture last region
+        Recommended: true
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: true
+            Alt: false
+            Keys:
+              - <PrtScr>
+      - Name: Capture window
+        Recommended: true
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: true
+            Keys:
+              - <PrtScr>
+      - Name: Capture fullscreen
+        Shortcut:
+          - Win: false
+            Ctrl: true
+            Shift: false
+            Alt: false
+            Keys:
+              - <PrtScr>
+      - Name: Capture Internet Explorer tab
+        Shortcut:
+          - Win: false
+            Ctrl: true
+            Shift: true
+            Alt: false
+            Keys:
+              - <PrtScr>
+  - SectionName: While selecting a region
+    Properties:
+      - Name: Switch between region and window mode
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - <Space>
+      - Name: Select a child window element
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - <PageDown>
+      - Name: Toggle magnifier
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - Z
+      - Name: Confirm selection
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - <Enter>
+      - Name: Cancel capture
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - <Escape>
+  - SectionName: Editor - draw
+    Properties:
+      - Name: Rectangle tool
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - R
+      - Name: Ellipse tool
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - E
+      - Name: Line tool
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - L
+      - Name: Arrow tool
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - A
+      - Name: Freehand line tool
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - F
+      - Name: Highlight tool
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - H
+      - Name: Obfuscate tool
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - O
+      - Name: Crop tool
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - C
+      - Name: Text tool
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - T
+      - Name: Selection tool
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - <Escape>
+      - Name: Enlarge screenshot by 25px
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: true
+            Alt: false
+            Keys:
+              - "+"
+      - Name: Crop to visible elements
+        Shortcut:
+          - Win: false
+            Ctrl: true
+            Shift: false
+            Alt: false
+            Keys:
+              - "-"
+      - Name: Paste image from clipboard
+        Shortcut:
+          - Win: false
+            Ctrl: true
+            Shift: false
+            Alt: false
+            Keys:
+              - V
+  - SectionName: Editor - text
+    Properties:
+      - Name: Insert line break
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: true
+            Alt: false
+            Keys:
+              - <Enter>
+      - Name: Delete previous word
+        Shortcut:
+          - Win: false
+            Ctrl: true
+            Shift: false
+            Alt: false
+            Keys:
+              - <Backspace>
+      - Name: Select all text
+        Shortcut:
+          - Win: false
+            Ctrl: true
+            Shift: false
+            Alt: false
+            Keys:
+              - A
+      - Name: Finish editing text
+        Shortcut:
+          - Win: false
+            Ctrl: false
+            Shift: false
+            Alt: false
+            Keys:
+              - <Enter>
+  - SectionName: Editor - export
+    Properties:
+      - Name: Save
+        Recommended: true
+        Shortcut:
+          - Win: false
+            Ctrl: true
+            Shift: false
+            Alt: false
+            Keys:
+              - S
+      - Name: Save as
+        Shortcut:
+          - Win: false
+            Ctrl: true
+            Shift: true
+            Alt: false
+            Keys:
+              - S
+      - Name: Copy image to clipboard
+        Recommended: true
+        Shortcut:
+          - Win: false
+            Ctrl: true
+            Shift: true
+            Alt: false
+            Keys:
+              - C
+      - Name: Print
+        Shortcut:
+          - Win: false
+            Ctrl: true
+            Shift: false
+            Alt: false
+            Keys:
+              - P
+      - Name: E-mail
+        Shortcut:
+          - Win: false
+            Ctrl: true
+            Shift: false
+            Alt: false
+            Keys:
+              - E