Display a custom title in the app and on lock screen notifications for better identification with multiple users on one device

[Pescador76]

Discussed in #2573

^{Originally posted by Pescador76 December 21, 2022}
Hello and many thanks to the developers of this app. We are parents of two children with diabetes. On my smartphone I have two versions of xdrip+ in follower mode, so I can see the values of both children at any time. The only problem is that the lockscreen notifications do not tell me which child the displayed value refers to. Also in the app there is nowhere the possibility to store a name or a recognition feature. In Nightscout, for example, there is the option to store a user-defined title, which is then clearly visible on the overview page. My only wish for the xdrip+ app would be to be able to enter a custom title to be displayed in the notifications and in the app. Thanks again to all of you.

Here are screenshots with comments of what I mean: