Ciao

Updated README.md, added muterole setup & remove, unban-all, unmute-all and all the chat commands that were missing + some fixes

Added slash commands mute and unmute (chat versions of these commands coming soon) | DEMO AND README NOT YET UPDATED

I modified the ban and unban slash commands to have temporary bans, added the ping chat command, and made it so that if the bot is shut down, cached bans and mutes are saved to MongoDB (currently, the mute commands are unavailable, and the ban and unban chat commands are not updated). | DEMO AND README NOT YET UPDATED

I created the bot and added the slash commands: /ping, /prefix show, /prefix change, /ban, /unban, /timeout set, and /timeout remove. For chat commands (the default prefix is --), I added [PREFIX]prefix (if you type just this, it shows you the prefix you have; if you type something after [PREFIX]prefix, it will become the new prefix), [PREFIX]ban, [PREFIX]unban, [PREFIX]timeout set, and [PREFIX]timeout remove. For more information on how they work, read the readme at https://github.com/Ciao287/ModBot/blob/main/README.md