fix(frontend): 設定変更時のリロード確認ダイアログが複数個表示されることがある問題を修正 (#14543)

* fix(frontend): reloadAskが同時に複数実行されないように

* Update Changelog

* fix

* フラグ解除が確実に行われるように

* reloadAskを汎用化、理由を受け取るように

* fix

packages/frontend/src/pages/settings/theme.vue

@@ -88,19 +88,9 @@ import { uniqueBy } from '@/scripts/array.js';
 import { fetchThemes, getThemes } from '@/theme-store.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import { miLocalStorage } from '@/local-storage.js';
-import { unisonReload } from '@/scripts/unison-reload.js';
+import { reloadAsk } from '@/scripts/reload-ask.js';
 import * as os from '@/os.js';
 
-async function reloadAsk() {
-	const { canceled } = await os.confirm({
-		type: 'info',
-		text: i18n.ts.reloadToApplySetting,
-	});
-	if (canceled) return;
-
-	unisonReload();
-}
-
 const installedThemes = ref(getThemes());
 const builtinThemes = getBuiltinThemesRef();
 
@@ -148,13 +138,13 @@ watch(syncDeviceDarkMode, () => {
 	}
 });
 
-watch(wallpaper, () => {
+watch(wallpaper, async () => {
 	if (wallpaper.value == null) {
 		miLocalStorage.removeItem('wallpaper');
 	} else {
 		miLocalStorage.setItem('wallpaper', wallpaper.value);
 	}
-	reloadAsk();
+	await reloadAsk({ reason: i18n.ts.reloadToApplySetting, unison: true });
 });
 
 onActivated(() => {