[FIX] Invalid MIME type when uploading audio files (#18426)

* Fix invalid mime type when uploading audio files

* Add migration.

app/ui/client/lib/recorderjs/audioEncoder.js

@@ -40,7 +40,7 @@ class AudioEncoder extends EventEmitter {
 	handleWorkerMessage = (event) => {
 		switch (event.data.command) {
 			case 'end': {
-				const blob = new Blob(event.data.buffer, { type: 'audio/mp3' });
+				const blob = new Blob(event.data.buffer, { type: 'audio/mpeg' });
 				this.emit('encoded', blob);
 				this.worker.terminate();
 				break;

server/startup/migrations/index.js

@@ -198,4 +198,5 @@ import './v198';
 import './v199';
 import './v200';
 import './v201';
+import './v202';
 import './xrun';

server/startup/migrations/v202.js

@@ -0,0 +1,15 @@
+import { Migrations } from '../../../app/migrations/server';
+import Uploads from '../../../app/models/server/models/Uploads';
+
+Migrations.add({
+	version: 202,
+	up() {
+		Promise.await(Uploads.model.rawCollection().updateMany({
+			type: 'audio/mp3',
+		}, {
+			$set: {
+				type: 'audio/mpeg',
+			},
+		}));
+	},
+});