Design comment: Emoji support w/ autocomplete
When writing a comment on a design, user's expect the same behavior that we give them in comment inputs under issues or MRs. Currently, we don't support emojis or emoji autocomplete.
Add emoji support and emoji autocomplete to design comments.
From slack comment: https://gitlab.slack.com/archives/CETG54GQ0/p1583333803200400
@cdybenko Adding to planning breakdown.