Add custom emojis to the emoji picker (#5052)

app/javascript/mastodon/reducers/custom_emojis.js

@@ -0,0 +1,13 @@
+import { List as ImmutableList } from 'immutable';
+import { STORE_HYDRATE } from '../actions/store';
+
+const initialState = ImmutableList();
+
+export default function statuses(state = initialState, action) {
+  switch(action.type) {
+  case STORE_HYDRATE:
+    return action.state.get('custom_emojis');
+  default:
+    return state;
+  }
+};

app/javascript/mastodon/reducers/index.js

@@ -20,6 +20,7 @@ import search from './search';
 import media_attachments from './media_attachments';
 import notifications from './notifications';
 import height_cache from './height_cache';
+import custom_emojis from './custom_emojis';
 
 const reducers = {
   timelines,
@@ -43,6 +44,7 @@ const reducers = {
   media_attachments,
   notifications,
   height_cache,
+  custom_emojis,
 };
 
 export default combineReducers(reducers);