Fix Design Bugs On Comments

[JamieB-gu]

@ajbreuer to provide list of issues to fix.

[rhiannareechaye]

Lower priority so lets do this after liveblogs

[rhiannareechaye]

Not a blocker for the Beta release as we won't render articles with comments for Beta

[petternitter]

This ticket doesn't contain enough information to triage, closing on that basis and we can re-open and triage as/when list of issues to fix is provided (although we should be wary of making improvements to Discussion until clearer strategy around Community and future of discussion platform)