Revert "Commands using embed now use mentions instead of display name"
Revert "Commands using embed now use mentions instead of display name"

This reverts commit d653c84480a3218aad9fbdaa9b82532d2abba29d.
Reverting mentions in embeds to display_name
Using mentions was unstable as it would show them as user ids instead of
names because of the way discord caches them.

Tschis/NabBot,Galarzaa90/NabBot