Multiple Ui improvements (#5398)

* PLT-5475 - Adjusting tutorials on mobile

* PLT-5475 - Adjusting tutorials on mobile

* PLT-5457 - Adjusting save button

* PLT-5443 - Updating highllight on status compact

* PLT-5413 - Team sidebar not scrolling

* PLT-5358 - Maintaing aspect ratio for emojis

* PLT-5411 - Removing help text from LDAP signin

* PLT-5420 - Updating emoticon for headings

* Updating emoji size

* Updating emoji size

* Removing emoticon tag

* Updating emoticon sizes

* Updating emoji size

webapp/components/post_view/components/reaction.jsx

@@ -188,9 +188,9 @@ export default class Reaction extends React.Component {
                     className={className}
                     onClick={handleClick}
                 >
-                    <img
-                        className='post-reaction__emoji'
-                        src={EmojiStore.getEmojiImageUrl(EmojiStore.get(this.props.emojiName))}
+                    <span
+                        className='post-reaction__emoji emoticon'
+                        style={{backgroundImage: 'url(' + EmojiStore.getEmojiImageUrl(EmojiStore.get(this.props.emojiName)) + ')'}}
                     />
                     <span className='post-reaction__count'>
                         {this.props.reactions.length}