Merge pull request #2047 from Flow-Launcher/revert_modernwpfui_version_bump

Interim fix for notification platform unavailable error

Author: jjw24

.github/actions/spelling/expect.txt

@@ -1,6 +1,7 @@
 crowdin
 DWM
 workflows
+Wpf
 wpf
 actionkeyword
 stackoverflow

Flow.Launcher/Flow.Launcher.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
@@ -90,7 +90,9 @@
     </PackageReference>
     <PackageReference Include="InputSimulator" Version="1.0.4" />
     <PackageReference Include="Microsoft.Toolkit.Uwp.Notifications" Version="7.1.3" />
-    <PackageReference Include="ModernWpfUI" Version="0.9.6" />
+    <!-- ModernWpfUI v0.9.5 introduced WinRT changes that causes Notification platform unavailable error on some machines -->
+    <!-- https://github.com/Flow-Launcher/Flow.Launcher/issues/1772#issuecomment-1502440801 -->
+    <PackageReference Include="ModernWpfUI" Version="0.9.4" />
     <PackageReference Include="NHotkey.Wpf" Version="2.1.0" />
     <PackageReference Include="NuGet.CommandLine" Version="6.3.1">
       <PrivateAssets>all</PrivateAssets>