This change cleans up the layout optimized for viewing dive details. The
top part contains brief and essential dive info (location, depth,
duration, dive no.), then the profile, then a table with more details,
and finally the notes.
The goal here is to present the dive's data more efficiently and
attractively now that the edit part is factored out.
Signed-off-by: Sebastian Kügler <sebas@kde.org>