[ZoomIt] Show users full hotkey list in settings (#43073)

<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request

This PR enhances the ZoomIt settings UI by refactoring some of the XAML
code and putting instructions as part of the settingsexpanders.
Additionally, the alternate hotkey combinations are now shown too and
will be updated based on the configured hotkey.
so that **Users will now be able to see all the hotkeys**.

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## PR Checklist

- [x] Closes: #42236
- [ ] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx

<!-- Provide a more detailed description of the PR, other things fixed,
or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments

<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed

### ZoomIt Extended (Derived) Hotkeys

Feature | Base Key Property | Default Base Key | Derived Key Property |
XOR Logic | Default Derived Key | Description
-- | -- | -- | -- | -- | -- | --
LiveZoom | LiveZoomToggleKey | Ctrl+4 | LiveZoomToggleKeyDraw | XOR
Shift | Ctrl+Shift+4 | Enter drawing mode in LiveZoom
Record | RecordToggleKey | Ctrl+5 | RecordToggleKeyCrop | XOR Shift |
Ctrl+Shift+5 | Record selected region (crop)
Record | RecordToggleKey | Ctrl+5 | RecordToggleKeyWindow | XOR Alt |
Ctrl+Alt+5 | Record specific window
Snip | SnipToggleKey | Ctrl+6 | SnipToggleKeySave | XOR Shift |
Ctrl+Shift+6 | Snip and save to file
DemoType | DemoTypeToggleKey | Ctrl+7 | DemoTypeToggleKeyReset | XOR
Shift | Ctrl+Shift+7 | Rewind to previous segment


<img width="832" height="3679" alt="Frame 2018778631"
src="https://github.com/user-attachments/assets/bebddcd8-d705-4582-ae8a-c847cb1c3e88"
/>

---------

Signed-off-by: check-spelling-bot <check-spelling-bot@users.noreply.github.com>
Co-authored-by: Niels Laute <niels.laute@live.nl>
Co-authored-by: Kai Tao <vanzue@users.noreply.github.com>

src/settings-ui/Settings.UI/Converters/HotkeySettingsToLocalizedStringConverter.cs

@@ -0,0 +1,31 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Windows;
+using Microsoft.PowerToys.Settings.UI.Helpers;
+using Microsoft.PowerToys.Settings.UI.Library;
+using Microsoft.UI.Xaml.Data;
+using Microsoft.Windows.ApplicationModel.Resources;
+
+namespace Microsoft.PowerToys.Settings.UI.Converters
+{
+    public partial class HotkeySettingsToLocalizedStringConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, string language)
+        {
+            if (value is HotkeySettings keySettings && parameter is string resourceKey)
+            {
+                return string.Format(System.Globalization.CultureInfo.CurrentCulture, ResourceLoaderInstance.ResourceLoader.GetString(resourceKey), keySettings.ToString());
+            }
+
+            return string.Empty;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, string language)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

src/settings-ui/Settings.UI/Converters/ZoomItOpacitySliderConverter.cs

@@ -0,0 +1,24 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using Microsoft.UI.Xaml.Data;
+
+namespace Microsoft.PowerToys.Settings.UI.Converters
+{
+    public sealed partial class ZoomItOpacitySliderConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, string language)
+        {
+            // Slider value is 1-100, display as percentage
+            int percentage = System.Convert.ToInt32((double)value);
+            return $"{percentage}%";
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, string language)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}