Update dependencies

Add README

config: Change from dotenv to loading config.json

Improve error handling

App will no longer crash, if the error response cannot be parsed (e.g.
when API is down).

Try to auto reconnect

Implement match vote with ban command

Automove clients when match gets started

Add function to move clients manually

That can be used when the last player checked in from the website.
Maybe this can be automated in the future with polling or webhooks.

tsconfig: Use es2020 as target

BigInt literals are not available when targeting lower than ES2020.

Add function to manipulate user data

For now only elo is possible.

Add !help command

Move back clients if match is finished

Don't crash if a user moved manually.

Add function to move clients to correct channels

Improve error handling

Autostart match if 10 players are queueing up.

play: Improve error handling

Implement cancelling and finishing a match

Implement cancel and start queue

Improve error handling, send message to whole channel

Implement elo and register commands