[Launcher]Port from WPF-UI to .NET 9 WPF (#36215)

* Initial implementation

* Fix fluent style

* Fix no endline

* Update expect.txt

* Fix formatting

* Fix light theme looking bad on Windows 10

* fix formatting

* test change

* Now really fixed W10

* Add a comment

* Fix typos

* Fix spellcheck errors

* Fix spellcheck pattern for websites

* Change patterns for spellcheck in the right file

* Fix XAML styling

* Fix contrast colors on W11

* Fix formatting

* Removed emty line

* Fix formatting

* Added comment to fluentHC file

* fix comment

* Fix Windows10 again.
Adress feedback.

* W11 fix chaning from high contrast to normal not having correct background

* W10 Fix high contrast not working after switching from light/dark moed

* Address feedback

* Fix formatting

* Second W11 fix chaning from high contrast to normal not having correct background

src/modules/launcher/PowerLauncher/PowerLauncher.csproj

@@ -58,7 +58,6 @@
     <PackageReference Include="System.Data.OleDb" />
     <PackageReference Include="System.ServiceProcess.ServiceController" />
     <PackageReference Include="UnitsNet" />
-    <PackageReference Include="WPF-UI" />
     <!-- HACK: To make sure the version pulled in by Microsoft.Extensions.Hosting is current. -->
     <PackageReference Include="System.Text.Json" />
   </ItemGroup>