Allow webhooks/interactions to mention roles/users

[LukeHankey]

From what I have seen, you cannot mention (specifically roles in my case) by replying to an interaction without giving the Mention @everyone, @here and all roles permission to the @everyone role.

I think this would be a good idea to have added, or perhaps it is a bug? This would allow bots to ping roles by having the above permission attached to one of the roles they have rather than having the @everyone role where anybody can mention any role. It is currently set up like this with normal messages, but not for webhooks/interactions.

I've linked my issue from discord.js for further insight.

discordjs/discordjs#6974