Hard to tell notification sources apart

[ecker00]

Is your feature request related to a problem? Please describe.
When getting a notification on web (viewing "All messages") or mobile (Android) there is nothing to indicate the App origin of the notification. I have multiple Proxmox Backup Servers running, and I can not tell which one is notifying me, without jumping to look at each source in the sidebar, which is very tedious.

Describe the solution you'd like
Include the App name in the notification for both web and mobile (as App name: Notification title is nice imo). If it's too much detail for some users, it could be configurable, or as a suffix (Notification content - App Name).

Describe alternatives you've considered
I could design unique icons for each service, but seems like a workaround for basic information.

Additional context
Bellow image illustrates a notification from two different instances, there is no way to tell which PBS instance these came from.

[jmattheis]

You can omit the title when pushing a message, then the app name will be used as message title.

I don't think many users need this behavior, as you can already set the title when pushing messages, and can adjust the application icon.