refactor: Use ESM (#8358)

* wip

* wip

* fix

* clean up

* Update tsconfig.json

* Update activitypub.ts

* wip

packages/backend/src/tools/accept-migration.ts

@@ -1,7 +1,7 @@
 // ex) node built/tools/accept-migration Yo 1000000000001
 
 import { createConnection } from 'typeorm';
-import config from '@/config/index';
+import config from '@/config/index.js';
 
 createConnection({
 	type: 'postgres',

packages/backend/src/tools/demote-admin.ts

@@ -1,4 +1,4 @@
-import { initDb } from '../db/postgre';
+import { initDb } from '../db/postgre.js';
 
 async function main(username: string) {
 	if (!username) throw `username required`;

packages/backend/src/tools/mark-admin.ts

@@ -1,4 +1,4 @@
-import { initDb } from '../db/postgre';
+import { initDb } from '../db/postgre.js';
 
 async function main(username: string) {
 	if (!username) throw `username required`;

packages/backend/src/tools/refresh-question.ts

@@ -1,4 +1,4 @@
-import { initDb } from '@/db/postgre';
+import { initDb } from '@/db/postgre.js';
 
 async function main(uri: string): Promise<any> {
 	await initDb();

packages/backend/src/tools/resync-remote-user.ts

@@ -1,5 +1,5 @@
-import { initDb } from '@/db/postgre';
-import * as Acct from 'misskey-js/built/acct';
+import { initDb } from '@/db/postgre.js';
+import * as Acct from '@/misc/acct.js';
 
 async function main(acct: string): Promise<any> {
 	await initDb();

packages/backend/src/tools/show-signin-history.ts

@@ -1,4 +1,4 @@
-import { initDb } from '@/db/postgre';
+import { initDb } from '@/db/postgre.js';
 
 // node built/tools/show-signin-history username
 //  => {Success} {Date} {IPAddrsss}