refactor: refactoring imports

将来ESMに移行しやすいように
Related: #7658

なんかmochaが起動しなくなってるけど理由不明
すぐ直したい

src/server/api/common/generate-block-query.ts

@@ -1,5 +1,5 @@
-import { User } from '../../../models/entities/user';
-import { Blockings } from '../../../models';
+import { User } from '@/models/entities/user.js';
+import { Blockings } from '@/models/index.js';
 import { Brackets, SelectQueryBuilder } from 'typeorm';
 
 // ここでいうBlockedは被Blockedの意