[PM-8292] Fixup ForegroundSyncService (#9292)

* Change `object` to `Record<string, unknown>`

* Change `object` to `Record<string, unknown>` Pt. 2

* Update ForegroundSyncService

- Manage finish message in the listener to more gaurantee a message back
- Make the timeout much longer
- Allow it to throw if the background sync service threw

---------

Co-authored-by: Cesar Gonzalez <cesar.a.gonzalezcs@gmail.com>

libs/common/src/platform/services/default-broadcaster.service.ts

@@ -1,7 +1,7 @@
 import { Subscription } from "rxjs";
 
 import { BroadcasterService, MessageBase } from "../abstractions/broadcaster.service";
-import { MessageListener, MessageSender } from "../messaging";
+import { MessageListener } from "../messaging";
 
 /**
  * Temporary implementation that just delegates to the message sender and message listener
@@ -10,14 +10,7 @@ import { MessageListener, MessageSender } from "../messaging";
 export class DefaultBroadcasterService implements BroadcasterService {
   subscriptions = new Map<string, Subscription>();
 
-  constructor(
-    private readonly messageSender: MessageSender,
-    private readonly messageListener: MessageListener,
-  ) {}
-
-  send(message: MessageBase, id?: string) {
-    this.messageSender.send(message?.command, message);
-  }
+  constructor(private readonly messageListener: MessageListener) {}
 
   subscribe(id: string, messageCallback: (message: MessageBase) => void) {
     this.subscriptions.set(