updates to improve cursor lock behavior

Signed-off-by: hultonha <hultonha@amazon.co.uk>

Code/Framework/AzToolsFramework/AzToolsFramework/Viewport/ViewportMessages.h

@@ -300,6 +300,12 @@ namespace AzToolsFramework
 
         using EditorViewportInputTimeNowRequestBus = AZ::EBus<EditorViewportInputTimeNowRequests>;
 
+        //! The style of cursor override.
+        enum class CursorStyleOverride
+        {
+            Forbidden
+        };
+
         //! Viewport requests for managing the viewport cursor state.
         class ViewportMouseCursorRequests
         {
@@ -310,10 +316,10 @@ namespace AzToolsFramework
             virtual void EndCursorCapture() = 0;
             //! Is the mouse over the viewport.
             virtual bool IsMouseOver() const = 0;
-            //!
-            virtual void PushOverrideCursor(/*enum*/) {} // make virtual
-            //!
-            virtual void PopOverrideCursor() {} // make virtual
+            //! Set the cursor style override.
+            virtual void SetOverrideCursor(CursorStyleOverride cursorStyleOverride) = 0;
+            //! Clear the current cursor style override.
+            virtual void ClearOverrideCursor() = 0;
 
         protected:
             ~ViewportMouseCursorRequests() = default;