refactor: remove all unused imports (#9951)

Co-authored-by: tamaina <tamaina@hotmail.co.jp>

packages/frontend/src/pages/clicker.vue

@@ -8,9 +8,7 @@
 </template>
 
 <script lang="ts" setup>
-import { ref } from 'vue';
 import MkClickerGame from '@/components/MkClickerGame.vue';
-import { i18n } from '@/i18n';
 import { definePageMetadata } from '@/scripts/page-metadata';
 
 definePageMetadata({