Slash Commands and Message Components

• Updated to discord.js v13. With that, the bot now functions using slash commands. The custom prefixes are all gone, as well as the ! default prefix. The global prefix is now / across all servers.
• The setprefix command has been removed.
• The option to view info about a specific command has been removed (Discord does that for you via the slash commands menu).
• The help command links are now shown in message buttons.

Server Charts

• Game changing update, server charts are here! Type serverchart to view a chart displaying the server's past 30 days activity. Please be mindful that the data is being collected at the end of each day, and at the date of releasing the update you're only able to view data of the past 2 days. This limit will increase, however, everyday, as more information is being collected in the database each midnight.
• Added a help command to display the bot's available commands and useful links.
• Added an invitelink command that responds with the bot's invite link (using the applications.commands scope to make it slash-commands-ready).
• Added a ping command to show the bot's current latency in ms.
• Added an option to customize the bot's default ! prefix with a new command, setprefix.