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/widgets/WidgetRss.vue

@@ -28,7 +28,7 @@ import * as Misskey from 'misskey-js';
 import { useWidgetPropsManager, WidgetComponentEmits, WidgetComponentExpose, WidgetComponentProps } from './widget.js';
 import { GetFormResultType } from '@/scripts/form.js';
 import MkContainer from '@/components/MkContainer.vue';
-import { url as base } from '@/config.js';
+import { url as base } from '@@/js/config.js';
 import { i18n } from '@/i18n.js';
 import { useInterval } from '@@/js/use-interval.js';
 import { infoImageUrl } from '@/instance.js';