Include mobile app name into Navigator.userAgent

[gribouk]

I have developed the doorbell integration. It has both, the backend and the front end. The idea is that it sends notifications of the calls only to companion apps which are marked as accepting calls. For this to work I need to know the mobile app name which is interacting with my frontend. I could not find any means of retriving the mobile app name when interacting with home assistant within the mobile app itself, which is dissapointing. At the moment I am forced to use the workaround with localStorage through generating the id there, then retrieving that id and mapping it manually in the setup to the actual companion app name in the backend, so my backend would discover itself what companion app is interacting with it. Thus I have following proposal/request:

1. Make companion app leave the notice of itself in the userAgent or Navigator.

Thanks in advance!