Properly store recently used emoji when reacting (#6854)

webapp/components/post_view/post_info/post_info.jsx

@@ -9,6 +9,7 @@ import DotMenu from 'components/dot_menu';
 
 import * as Utils from 'utils/utils.jsx';
 import * as PostUtils from 'utils/post_utils.jsx';
+import {emitEmojiPosted} from 'actions/post_actions.jsx';
 import Constants from 'utils/constants.jsx';
 
 import React from 'react';
@@ -119,6 +120,7 @@ export default class PostInfo extends React.PureComponent {
         this.setState({showEmojiPicker: false, reactionPickerOffset: pickerOffset});
         const emojiName = emoji.name || emoji.aliases[0];
         this.props.actions.addReaction(this.props.post.id, emojiName);
+        emitEmojiPosted(emojiName);
     }
 
     getDotMenu = () => {