* Use post metadata to prevent scroll pop
* Fix not to fetch for reactions every time
* Update post-metadata mm-redux ref
* Update mattermost-redux to include post-metadata
* MM-10273 Add hashtag support
* Put hashtag search in a proper modal
* Change hashtag search style to match regular search
* Move Hashtag component and explicitly pass props
* Add unit tests for Hashtag component
* Fix merge conflict
