📦 Feature - Implement @here and @everyone options on planets

[MrLuxuri]

This feature is often used on announcements by communities and it's a very important ping function. When implementing @here and @everyone features, there should also be an option to suppress this function on server settings by admins/mods as well as specific roles.

At the moment, Valour doesn't have any functionality like @here and @everyone

[SpikeViper]

@everyone now exists in 0.2.1.0