refactor(frontend): frontend-embed/src/to-be-sharedを共通化 (#14536)

* refactor(frontend): shouldCollapsedを共通化

* refactor(frontend): config.js, worker-multi-dispatch.js, intl-const.jsを共通化

* fix(frontend-shared): fix type error

* refactor(frontend): is-link.jsと、同一の振る舞いをする記述を共通化

* fix

* fix lint

* lint fixes

packages/frontend/src/pages/theme-editor.vue

@@ -88,7 +88,7 @@ import MkFolder from '@/components/MkFolder.vue';
 
 import { $i } from '@/account.js';
 import { Theme, applyTheme } from '@/scripts/theme.js';
-import { host } from '@/config.js';
+import { host } from '@@/js/config.js';
 import * as os from '@/os.js';
 import { ColdDeviceStorage, defaultStore } from '@/store.js';
 import { addTheme } from '@/theme-store.js';