minor reorg/cleanup

app/trackplayer/QueueEvents.ts

@@ -0,0 +1,18 @@
+/* eslint-disable no-dupe-class-members */
+import { EmitterSubscription, NativeEventEmitter } from 'react-native'
+import { TrackExt } from '@app/models/trackplayer'
+
+class QueueEventEmitter extends NativeEventEmitter {
+  addListener(eventType: 'set', listener: (event: { queue: TrackExt[] }) => void): EmitterSubscription
+  addListener(eventType: string, listener: (event: any) => void, context?: Object): EmitterSubscription {
+    return super.addListener(eventType, listener, context)
+  }
+
+  emit(eventType: 'set', event: { queue: TrackExt[] }): void
+  emit(eventType: string, ...params: any[]): void {
+    super.emit(eventType, ...params)
+  }
+}
+
+const QueueEvents = new QueueEventEmitter()
+export default QueueEvents