[Feature] Custom Team Name support

[mavproductions]

Hey again Qwizi,

Just wondering if you would be able to default the team names to something similar to faceit aka "team_-maV." vs. "team_Qwizi", but also allow teams to edit their team names before to game goes live.

Meaning in discord, this could look like:
> /teamName "Purple Monkey Dishwashers"
> "team_-maV." changes team name to "Purple Monkey Dishwashers"

If this is something easy to implement cool, if not no worries. If it is easy, eventually you could consider enabling/disabling team name changes, or locking it to only captains changing the team name instead of all team members.