All the changes done to files that are also inside CE and need to be ported.
- all commits squashed to make danger review happy
- next-discuss button is always show unless there is only 1 discussion - regroup buttons arrangements
- Created DiscussionActions component - Updated NoteableDiscussion component accordingly - Wrote Jest tests for DiscussionActions - Updated Jest config to enable emojis aliases mock - Updated qa specs to reflect changes in NoteableDiscussions