Add EscapeContext keybind (#15301)

* Add EscapeContext

Escape context input closes windows if there are any open. If there are not any windows it opens the game menu.

* Add fluent for Escape Context

* Move EngineContext keybind to content

* Readd WindowCloseAll

* Fix EscapeContext not opening the game menu after using WindowCloseAll

WindowCloseAll does not clear the CloseRecentWindowUIController.recentlyInteractedWindows, which caused HasClosableWindow to return true because the list still had items.

Changed HasClosableWindow to check if windows in the list are still open and clear them if they aren't.

* Clean up EscapeContextUIController

Content.Client/UserInterface/Systems/EscapeMenu/EscapeUIController.cs

@@ -133,7 +133,10 @@ public sealed class EscapeUIController : UIController, IOnStateEntered<GameplayS
         _escapeWindow?.Close();
     }
 
-    private void ToggleWindow()
+    /// <summary>
+    /// Toggles the game menu.
+    /// </summary>
+    public void ToggleWindow()
     {
         if (_escapeWindow == null)
             return;