platform additions

Signed-off-by: fufesou <shuanglongchen@yeah.net>

flutter/lib/desktop/widgets/remote_toolbar.dart

@@ -1684,6 +1684,9 @@ class _KeyboardMenu extends StatelessWidget {
 
       for (KeyboardModeMenu mode in modes) {
         if (bind.sessionIsKeyboardModeSupported(id: id, mode: mode.key)) {
+          if (pi.is_wayland && mode.key != _kKeyMapMode) {
+            continue;
+          }
           if (mode.key == _kKeyTranslateMode) {
             if (Platform.isLinux) {
               continue;