merge: more upstream changes

packages/frontend/src/scripts/touch.ts

@@ -3,6 +3,7 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
+import { ref } from 'vue';
 import { deviceKind } from '@/scripts/device-kind.js';
 
 const isTouchSupported = 'maxTouchPoints' in navigator && navigator.maxTouchPoints > 0;
@@ -16,3 +17,6 @@ if (isTouchSupported && !isTouchUsing) {
 		isTouchUsing = true;
 	}, { passive: true });
 }
+
+/** (MkHorizontalSwipe) 横スワイプ中か？ */
+export const isHorizontalSwipeSwiping = ref(false);