Easier way to prune servers

[isiah-lloyd]

So now that we are stuck at the 100 server limit, it would be nice to have a way to automatically leave servers that haven't used the bot in a while. I've been doing this mainly using the tool in tools/guildCli.ts

Here's the criteria ive been using to leave servers:

• Haven't used in a month
• Joined and never used a command (or used a few commands on first day of install)
• Joined and didn't understand what the bot does (exclusively tries to play youtube links)

This will require better analytics collection as I've just been cross-referencing the text logs to figure out server activity.