More 470 final feedback

[benitsch]

A couple rework for the clean up phase. For e.g.:

• Add Unit tests.
• Support different order of date parts (dd/mm/yy) depending on the EN or DE country locale.
• No row highlight on hover in MoreTable component when row does not have any action on click.
• Disable table action buttons on row edit mode.
• Change the study status color and show a bottom border at the header, depending on its current status.
• Do not show seconds e.g. at observation relative schedule, because we can not configure seconds.
• Renaming relative date at Timeline tab and add an info tooltip for more information.
• Some translation fixes.
• etc.

[github-actions[bot]]

Test Results

0 tests  ±0   0 :white_check_mark: ±0   0s :stopwatch: ±0s 0 suites ±0   0 :zzz: ±0  0 files   ±0   0 :x: ±0 

Results for commit dd32c94f. ± Comparison against base commit 7693b165.