refactor(frontend): Reactivityで型を明示するように (#12791)

* refactor(frontend): Reactivityで型を明示するように

* fix: プロパティの参照が誤っているのを修正

* fix: 初期化の値を空配列に書き換えていた部分をnullに置き換え

packages/frontend/src/pages/list.vue

@@ -35,6 +35,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <script lang="ts" setup>
 import { watch, computed, ref } from 'vue';
+import * as Misskey from 'misskey-js';
 import * as os from '@/os.js';
 import { userPage } from '@/filters/user.js';
 import { i18n } from '@/i18n.js';
@@ -47,9 +48,9 @@ const props = defineProps<{
 	listId: string;
 }>();
 
-const list = ref(null);
+const list = ref<Misskey.entities.UserList | null>(null);
 const error = ref();
-const users = ref([]);
+const users = ref<Misskey.entities.UserDetailed[]>([]);
 
 function fetchList(): void {
 	os.api('users/lists/show', {