[dotnet] Update the relative path of every item left in ResolveFileToPublish.

Update the relative path of every item in the ResolveFileToPublish item group to
be relative to the root of the app bundle.

dotnet/targets/Xamarin.Shared.Sdk.targets

@@ -1339,6 +1339,9 @@
 			<_CompressedAppleBindingResourcePackage Include="@(ResolvedFileToPublish)" Condition="'%(ResolvedFileToPublish.PublishFolderType)' == 'CompressedAppleBindingResourcePackage'" />
 			<ResolvedFileToPublish Remove="@(_AppleBindingResourcePackage)" />
 			<ResolvedFileToPublish Remove="@(_CompressedAppleBindingResourcePackage)" />
+
+			<!-- Rewrite the relative path so that everything ends up in the app bundle -->
+			<ResolvedFileToPublish RelativePath="$(_RelativeAppBundlePath)\%(RelativePath)" />
 		</ItemGroup>
 
 		<!-- resolve any .xcframeworks and binding resource packages -->