Fix message sending

[h1divp]

If someone sends a message after setting up the project for the first time it's likely to not be received by nearby devices anymore???? what????

I think this has to deal with the socket API and have done a bit of research into this issue last month. If you have any leads please comment.

Multiple people can be assigned to this issue.

[h1divp]

It looks like that after the the app loads, and a refresh is caused by a file change after a file is saved including a new change (NOT by refreshing through pressing 'r' in the expo cli), users can connect, and both messages and a locations can be sent by the client, which the server is able to receive.

[h1divp]

Note: if app refreshes occur, old ConnectedUsers documents are not cleaned up

[h1divp]

Message and location communication fully works with the above described method.
I expect the bug to be caused by improper socket mounting.

[h1divp]

After the above method is done to fix message sending, communication also seems to still work after refreshing through console and even after re-running npm start.

[h1divp]

Above fix also works even after ConnectedUsers is deleted, restarting the app afterwards. New users also seem to be fine connecting...