- [GUI] Remember last selected CABMap if exists.

- [GUI] Only apply UnityCN key changes if game is selected.

AssetStudioGUI/Properties/Settings.Designer.cs

@@ -453,5 +453,17 @@ namespace AssetStudioGUI.Properties {
                 this["selectedUnityCNKey"] = value;
             }
         }
+        
+        [global::System.Configuration.UserScopedSettingAttribute()]
+        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [global::System.Configuration.DefaultSettingValueAttribute("")]
+        public string selectedCABMapName {
+            get {
+                return ((string)(this["selectedCABMapName"]));
+            }
+            set {
+                this["selectedCABMapName"] = value;
+            }
+        }
     }
 }