Odin: Fix Design Issues

[marbetschar]

What Happened

On Odin there are still some design issues to iron out. The corresponding PR is out of date and I'm not quite sure which parts are stylesheet related and which are Tasks related - therefore I created this issue.

[marbetschar]

@danrabbit any idea how to fix this one? Especially regarding the "New Task Title Field": It should be rendered just as a line, not as a box - and the line should be probably visible as well when the row is activated (#253).

At least this was the initial intention ;)