Update emoji-list.jsx (#3520)

* Update emoji-list.jsx

* Update en.json

* Update emoji_list.jsx

* Update en.json

* Update emoji_list.jsx

* Update en.json

webapp/components/emoji/components/emoji_list.jsx

@@ -143,7 +143,7 @@ export default class EmojiList extends React.Component {
                 <span className='backstage-list__help'>
                     <FormattedMessage
                         id='emoji_list.help'
-                        defaultMessage='Custom emoji are available to everyone on your server and will show up in the emoji autocomplete menu.'
+                        defaultMessage='Custom emoji are available to everyone on your server and will appear in the emoji autocomplete menu. Other users may need to refresh the page before new emojis appear.'
                     />
                 </span>
                 <div className='backstage-list'>

webapp/i18n/en.json

@@ -1020,6 +1020,7 @@
   "emoji_list.creator": "Creator",
   "emoji_list.delete": "Delete",
   "emoji_list.empty": "No Custom Emoji Found",
+  "emoji_list.help": "Custom emoji are available to everyone on your server and will appear in the emoji autocomplete menu. Other users may need to refresh the page before new emojis appear.",
   "emoji_list.image": "Image",
   "emoji_list.name": "Name",
   "emoji_list.search": "Search Custom Emoji",