Refactor and reformat XAML and related files

Improved code readability, consistency, and formatting across multiple files:
- Updated `expect.txt` placeholders and entries for `customaction`, `Dxva`, and `svchost`.
- Fixed a minor XML documentation formatting issue in `MonitorStateManager.cs`.
- Reformatted `TextBlock` in `IdentifyWindow.xaml` for better alignment.
- Cleaned up `MainWindow.xaml` by removing duplicate `xmlns` declarations, consolidating attributes, and improving clarity in `ProfilesButton`.
- Refactored `LightSwitchPage.xaml`:
  - Improved indentation and alignment in `SettingsExpander` and `SettingsCard`.
  - Reintroduced and reformatted "Force mode now" and location settings sections.
  - Enhanced `LocationResultPanel` with sunrise/sunset tooltips.
- Organized `PowerDisplayPage.xaml` by deduplicating `xmlns` declarations and consolidating `SettingsCard` attributes.

These changes enhance maintainability, readability, and adherence to coding standards.

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

@@ -331,7 +331,6 @@ CUSTOMFORMATPLACEHOLDER
 CVal
 cvd
 CVirtual
-CVS
 CWMO
 CXSCREEN
 CXSMICON
@@ -480,7 +479,7 @@ eab
 EAccess
 easeofaccess
 ecount
-Edid
+edid
 EDITKEYBOARD
 EDITSHORTCUTS
 EDITTEXT
@@ -1774,7 +1773,7 @@ SVGIO
 svgz
 SVSI
 SWFO
-SWP
+swp
 SWPNOSIZE
 SWPNOZORDER
 SWRESTORE