Fix Maui Example on cross platform build

Author: Happypig375

CSharpMath.Maui.Example/CSharpMath.Maui.Example.csproj

@@ -12,7 +12,7 @@
 		either BOTH runtimes must be indicated or ONLY macatalyst-x64. -->
 		<!-- For example: <RuntimeIdentifiers>maccatalyst-x64;maccatalyst-arm64</RuntimeIdentifiers> -->
 
-		<OutputType>Exe</OutputType>
+		<OutputType Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) != ''">Exe</OutputType>
 		<RootNamespace>CSharpMath.Maui.Example</RootNamespace>
 		<UseMaui>true</UseMaui>
 		<SingleProject>true</SingleProject>