Add bot icon to slash command mention

[Koyamie]

Hey,

Got the idea of adding the bot icon to slash command mentions, it would help to know quickly from which bot the command is.
Tho, might add a condition where if it's the bot itself that mention his own command, remove that icon.

It would have the same behavior of message mention where if it's in the same server it only display channel name and if it's out it display the icon + server name (not sure bot name is interesting there).

Would look like this:

Thanks