Improve audio connection stability

[vrnagy]

This change improves the connection handling of audio and adds extra info abot the current connection status to the player.
Along with #149 our connection issues went away. Every people can hear the others and no reconnection issues after every game

• Fix WebRTC connection handling.
• Add extra info about connection state for players.
• Handle basic WebRTC errors.

[MattJustMatt]

Seeing a teal circle on some player (person isn't present in audioConnected array?). It's not clear to a user what this would mean IMHO outside of reading the code.

[MattJustMatt]

(and tbh even from reading the code I'm still not sure what to do to fix!)

[vrnagy]

It meens that there is a problem with the WebRTC connection between the Player and You, but You're right, we shoild give some description what it means

[Soitora]

Would this fix some users not being able to hear others? Or does this need #149 merged as well?

[tystuyfzand]

It meens that there is a problem with the WebRTC connection between the Player and You, but You're right, we shoild give some description what it means

So, a warning? The universal status color for that is yellow, which may say "your connection isn't active" better than teal.

[vrnagy]

@Soitora it resolves the issue at the game end when everyone reconnects to each other. To fix the hearing problem it needs #149 as wel.

@tystuyfzand replaced the color to yellow