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/EscapeContextUIController.cs

@@ -0,0 +1,37 @@
+using Content.Client.UserInterface.Systems.Info;
+using Content.Shared.Input;
+using JetBrains.Annotations;
+using Robust.Client.Input;
+using Robust.Client.UserInterface;
+using Robust.Client.UserInterface.Controllers;
+using Robust.Shared.Input;
+using Robust.Shared.Input.Binding;
+
+namespace Content.Client.UserInterface.Systems.EscapeMenu;
+
+[UsedImplicitly]
+public sealed class EscapeContextUIController : UIController
+{
+    [Dependency] private readonly IInputManager _inputManager = default!;
+
+    [Dependency] private readonly CloseRecentWindowUIController _closeRecentWindowUIController = default!;
+    [Dependency] private readonly EscapeUIController _escapeUIController = default!;
+
+    public override void Initialize()
+    {
+        _inputManager.SetInputCommand(ContentKeyFunctions.EscapeContext,
+            InputCmdHandler.FromDelegate(_ => CloseWindowOrOpenGameMenu()));
+    }
+
+    private void CloseWindowOrOpenGameMenu()
+    {
+        if (_closeRecentWindowUIController.HasClosableWindow())
+        {
+            _closeRecentWindowUIController.CloseMostRecentWindow();
+        }
+        else
+        {
+            _escapeUIController.ToggleWindow();
+        }
+    }
+}