Configurable discord bot prefix

[SandPoot]

Is your feature request related to a problem? Please describe.

A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
Not really.

Describe the solution you'd like

A clear and concise description of what you want to happen.
A simple text box on the chat bot you would like it to be applied on, right under "New connection string" and when applied, that would be the new prefix for doing commands with the bot.

Describe alternatives you've considered

A clear and concise description of any alternative solutions or features you've considered.
There's no real alternative to this, you can only trigger the bot with "!tgs <params or nothing>"

Additional context

Add any other context or screenshots about the feature request here.
Nothing.

[ZeWaka]

ChatManager.CommonMention