Switch from EmojiOne to Twemoji, different emoji picker (#5046)

* Switch from EmojiOne to Twemoji, different emoji picker

* Make emoji-mart use a local spritesheet

* Fix emojify test

* yarn manage:translations

app/javascript/mastodon/locales/oc.json

@@ -67,13 +67,17 @@
   "embed.instructions": "Embarcar aqueste estatut per lo far veire sus un site Internet en copiar lo còdi çai-jos.",
   "embed.preview": "Semblarà aquò : ",
   "emoji_button.activity": "Activitats",
+  "emoji_button.custom": "Custom",
   "emoji_button.flags": "Drapèus",
   "emoji_button.food": "Beure e manjar",
   "emoji_button.label": "Inserir un emoji",
   "emoji_button.nature": "Natura",
+  "emoji_button.not_found": "No emojos!! (╯°□°）╯︵ ┻━┻",
   "emoji_button.objects": "Objèctes",
   "emoji_button.people": "Gents",
+  "emoji_button.recent": "Frequently used",
   "emoji_button.search": "Cercar…",
+  "emoji_button.search_results": "Search results",
   "emoji_button.symbols": "Simbòls",
   "emoji_button.travel": "Viatges & lòcs",
   "empty_column.community": "Lo flux public local es void. Escrivètz quicòm per lo garnir !",