Events + Contacts + ...!

Once you manage to have contacts on the map (#16) and events on the map (#3), it would be useful how to help the user to understand what is near to who.

Scenarios:
It would be cool if the map (or generally Nextcloud) shows/remembers me that :

• two clients are near the conference venue (I can call and see if they want me to come and update them on the new features)
• John lives near the restaurant where I will have a dinner (we can invite him!)

Nice additions would be:

Considering the time frame:
I am scheduling a meeting with a client at their site. I want to see on the map the other meeting which is half an hour before. If it is too far I will have to reschedule this meeting!

Considering the data of other users:
You know that famous conference you are going to attend? Did you know that Karl, the sales rep, is going too? Maybe you can have dinner together (or go together to the client). There are of course permission issues but also a lot of useful applications!

Start by reviewing issues #16 and #3 to understand how contacts and events are represented on the map. Clarify the intended proximity, time-window, visibility, and permission behavior with maintainers; the work is done only when those scenarios have an agreed scope and acceptance criteria.