PLT-7116/PLT-7126 Some final release fixes (#6933)

* Some final release fixes

* Fix team switching with image in channel bug

webapp/components/markdown_image.jsx

@@ -39,7 +39,7 @@ export default class MarkdownImage extends React.PureComponent {
 
     waitForHeight = () => {
         if (this.refs.image.height) {
-            postListScrollChange();
+            setTimeout(postListScrollChange, 0);
 
             this.heightTimeout = 0;
         } else {