Only target UWP and WASDK

Author: niels9001

components/Shimmer/samples/MultiTarget.props

@@ -0,0 +1,9 @@
+<Project>
+    <PropertyGroup>
+        <!--
+          MultiTarget is a custom property that indicates which target a project is designed to be built for / run on.
+          Used to create project references, generate solution files, enable/disable TargetFrameworks, and build nuget packages.
+        -->
+        <MultiTarget>uwp;wasdk;</MultiTarget>
+    </PropertyGroup>
+</Project>

components/Shimmer/src/MultiTarget.props

@@ -4,6 +4,6 @@
           MultiTarget is a custom property that indicates which target a project is designed to be built for / run on.
           Used to create project references, generate solution files, enable/disable TargetFrameworks, and build nuget packages.
         -->
-        <MultiTarget>uwp;wasdk;wpf;wasm;linuxgtk;macos;ios;android;</MultiTarget>
+        <MultiTarget>uwp;wasdk;</MultiTarget>
     </PropertyGroup>
-</Project>
+</Project>