fix: the title of the help-hint is now the localized field name

Previously it was the clojure keyword of the field.
fix: remove visual cue on empty links opening in a new page

Related to 8673f93.
change: name and help-hints of parameters in image hierarchy section
change: make enabled state toggling in view mode consistent with edit

Affects the toggling due to checkbox on 'native image' and
'inherit group members form parent' checkboxes. Previously, the toggling
of the relevant parameters happened only on edit mode. Now view mode
displays a coherent state with the edit mode.
change: enhance 'Documentation' page layout

- Remove '...in new page' from links since we have a visual cue now.
- Remove headers and include the type of document in the link.
new: left-stack subsection tabs if there are more than 7