Marked the Mono.WebAssembly.Interop package as non-shipping (#21367)

* Marked the Mono.WebAssembly.Interop package as non-shipping

Author: mkArtakMSFT

src/Components/Blazor/Mono.WebAssembly.Interop/src/Mono.WebAssembly.Interop.csproj

@@ -6,7 +6,7 @@
     <PackageTags>wasm;javascript;interop</PackageTags>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <IsPackable>true</IsPackable>
-    <IsShipping>true</IsShipping>
+    <IsShipping>false</IsShipping>
     <HasReferenceAssembly>false</HasReferenceAssembly>
   </PropertyGroup>