A new rake task emojis:generate downloads a full list of valid
unicode sequences from unicode.org and checks it against existing
Twemoji files, finally generating a map from each sequence to the
existing file (e.g. when there's multiple ways an emoji can be
expressed). The map is dumped into app/javascript/mastodon/emoji_map.json
That file is loaded by emojione_light.js (now a misnomer) which
decorates it further with shortcodes taken from emoji-mart's index.
* chore(yarn): Install babel-plugin-preval as development dependency
* feat(babel): Add preval as a plugin
* feat(emojione_light): Prevaled module what tree-shaked emojione
* refactor(emoji): Use emojione_light
* feat: Preload emojione_picker bundle
* fix(emojione_light): Do not use Object.entries
* fix(emojify): Update tests
* chore(emojione_light): Remove silly ascii art
