FR: Add emoji support with type-ahead in the text/body

[joestump]

Describe the solution you'd like

I would like to be able to use emojis in my memos. I got into the habit of using emoji to visually enhance my text documents with Quip, Slack, and Google Docs. Would like the same experience here for e.g. :eyes:.

Would be super rad if I could upload my own like Slack allows.

Type of feature

User Interface (UI)

Additional context

No response