refactor: remove all unused imports (#9951)

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

packages/frontend/src/components/MkDonation.vue

@@ -31,7 +31,6 @@
 </template>
 
 <script lang="ts" setup>
-import { onMounted, shallowRef } from 'vue';
 import MkButton from '@/components/MkButton.vue';
 import MkLink from '@/components/MkLink.vue';
 import { host } from '@/config';