refactor(frontend): 非推奨となったReactivity Transformを使わないように (#12539)

* refactor(frontend): 非推奨となったReactivity Transformを使わないように

* refactor: 不要な括弧を除去

* fix: 不要なアノテーションを除去

* fix: Refの配列をrefしている部分の対応

* refactor: 不要な括弧を除去

* fix: lint

* refactor: Ref、ShallowRef、ComputedRefの変数の宣言をletからconstに置換

* fix: type error

* chore: drop reactivity transform from eslint configuration

* refactor: remove unnecessary import

* fix: 対応漏れ

packages/frontend/src/pages/user/index.activity.vue

@@ -20,7 +20,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import MkContainer from '@/components/MkContainer.vue';
 import MkChart from '@/components/MkChart.vue';
@@ -34,20 +34,20 @@ const props = withDefaults(defineProps<{
 	limit: 50,
 });
 
-let chartSrc = $ref('per-user-notes');
+const chartSrc = ref('per-user-notes');
 
 function showMenu(ev: MouseEvent) {
 	os.popupMenu([{
 		text: i18n.ts.notes,
-		active: chartSrc === 'per-user-notes',
+		active: chartSrc.value === 'per-user-notes',
 		action: () => {
-			chartSrc = 'per-user-notes';
+			chartSrc.value = 'per-user-notes';
 		},
 	}, {
 		text: i18n.ts.numberOfProfileView,
-		active: chartSrc === 'per-user-pv',
+		active: chartSrc.value === 'per-user-pv',
 		action: () => {
-			chartSrc = 'per-user-pv';
+			chartSrc.value = 'per-user-pv';
 		},
 	}, /*, {
 		text: i18n.ts.following,