Make list of emojis accessible near message input field
Make an emoji list panel (which shows all available emojis) accessible via button near the text message input field. The emoji list in help system isn't accessible very well.
Emoji picker feature is complete and shipped with v4.0 on July 16th. You can read about it in the [Changelog here](https://docs.mattermost.com/administration/changelog.html#emoji-picker)