refactor: Use ESM (#8358)

* wip

* wip

* fix

* clean up

* Update tsconfig.json

* Update activitypub.ts

* wip

packages/backend/src/boot/worker.ts

@@ -1,5 +1,5 @@
-import * as cluster from 'cluster';
-import { initDb } from '../db/postgre';
+import cluster from 'node:cluster';
+import { initDb } from '../db/postgre.js';
 
 /**
  * Init worker process
@@ -8,10 +8,10 @@ export async function workerMain() {
 	await initDb();
 
 	// start server
-	await require('../server').default();
+	await import('../server/index.js').then(x => x.default());
 
 	// start job queue
-	require('../queue').default();
+	import('../queue/index.js').then(x => x.default());
 
 	if (cluster.isWorker) {
 		// Send a 'ready' message to parent process