[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>

apps/desktop/src/app/services/services.module.ts

@@ -151,7 +151,7 @@ const safeProviders: SafeProvider[] = [
   }),
   safeProvider({
     provide: MessageSender,
-    useFactory: (subject: Subject<Message<object>>) =>
+    useFactory: (subject: Subject<Message<Record<string, unknown>>>) =>
       MessageSender.combine(
         new ElectronRendererMessageSender(), // Communication with main process
         new SubjectMessageSender(subject), // Communication with ourself
@@ -160,7 +160,7 @@ const safeProviders: SafeProvider[] = [
   }),
   safeProvider({
     provide: MessageListener,
-    useFactory: (subject: Subject<Message<object>>) =>
+    useFactory: (subject: Subject<Message<Record<string, unknown>>>) =>
       new MessageListener(
         merge(
           subject.asObservable(), // For messages from the same context