[net6.0] Update Essentials AppActions API Docs (#11614)

* Fix Essentials AppActions API Docs

* Update AppActions.netstandard.tvos.watchos.macos.tizen.cs

* Apply suggestions from code review

Co-authored-by: E.Z. Hart <hartez@users.noreply.github.com>

Co-authored-by: Gerald Versluis <gerald.versluis@microsoft.com>
Co-authored-by: E.Z. Hart <hartez@users.noreply.github.com>

Author: 3 people

src/Essentials/docs/Microsoft.Maui.Essentials/AppAction.xml

@@ -4,7 +4,6 @@
 
 namespace Microsoft.Maui.ApplicationModel
 {
-	/// <include file="../../docs/Microsoft.Maui.Essentials/AppActions.xml" path="Type[@FullName='Microsoft.Maui.Essentials.AppActions']/Docs/*" />
 	partial class AppActionsImplementation : IAppActions
 	{
 		public bool IsSupported =>