Make Enter key always work in object selection windows, regardless of the currently selected control

Author: Rampastring

src/TSMapEditor/UI/Windows/SelectObjectWindow.cs

@@ -126,6 +126,20 @@ private void SelectObjectWindow_EnabledChanged(object sender, EventArgs e)
             if (!Enabled)
             {
                 HideInfoPanel();
+                Keyboard.OnKeyDown -= Keyboard_OnKeyDown;
+            }
+            else
+            {
+                Keyboard.OnKeyDown += Keyboard_OnKeyDown;
+            }
+        }
+
+        private void Keyboard_OnKeyDown(object sender, Rampastring.XNAUI.Input.KeyPressEventArgs e)
+        {
+            if (e.PressedKey == Microsoft.Xna.Framework.Input.Keys.Enter)
+            {
+                ConfirmSelection();
+                e.Handled = true;
             }
         }