Save chat history in localStorage

[h1divp]

Not sure what the best way to go about this would be, but it would be nice to have chat history persist on refresh

Since we're not saving messages in the server it might be a good idea to store received messages locally. Perhaps they could be delete based off of a TTL value that users set for their own messages, though obviously this wouldn't be very secure as people would be able to copy stuff from the browser storage

Otherwise, in the case of logged out users, I think it would make the most sense for messages to survive as long as the session cookie. So if no session cookie or new one has to be requested -> delete locally stored messages, otherwise keep

[h1divp]

Also this is just to solve a UX issue where a user might refresh accidentally and then realize all of the messages they were reading are gone

This also may get slightly more complicated adding in distances & areas, as messages might have to be stored with some classification