Bump ReactiveUI from 18.3.1 to 19.5.72

Bumps [ReactiveUI](https://github.com/reactiveui/reactiveui) from 18.3.1 to 19.5.72.
- [Release notes](https://github.com/reactiveui/reactiveui/releases)
- [Commits](reactiveui/ReactiveUI@18.3.1...19.5.72)

---
updated-dependencies:
- dependency-name: ReactiveUI
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

OTAPI.Client.Launcher/OTAPI.Client.Launcher.csproj

@@ -35,7 +35,7 @@
 		<PackageReference Include="CefGlue.Common" Version="91.4472.30" />
 		<PackageReference Include="Material.Avalonia" Version="2.5.1" />
 		<PackageReference Include="Projektanker.Icons.Avalonia.FontAwesome" Version="5.5.0" />
-		<PackageReference Include="ReactiveUI" Version="18.3.1" />
+		<PackageReference Include="ReactiveUI" Version="19.5.72" />
 		<PackageReference Include="System.Reactive.Linq" Version="5.0.0" />
 		<PackageReference Include="Microsoft.Win32.Registry" Version="6.0.0-preview.5.21301.5" GeneratePathProperty="true" />
 	</ItemGroup>