Adjust some DCA evaluation keys to comply with the general settings

Signed-off-by: xchs <github@gmx.net>
Adjust the formatting of a `syncShowUnchanged` checkbox input element

Signed-off-by: xchs <github@gmx.net>
Add a few missing `title` attributes for the file/page manager links

Signed-off-by: xchs <github@gmx.net>
Add some missing strings to `default.xlf` (details view)

Signed-off-by: xchs <github@gmx.net>
Make "Monday" the default week start day in the calendar modules (see #5615)
Fix the tooltip display in the repository module (see #5540)
Show an error message if no file has been selected to be uploaded (see #5617)
`[Alt] + [Shift] + click` elements to edit their header data
Change the "click to edit" key bindings
Merge branch 'hotfix/dca-eval-options' of https://github.com/xchs/contao-core into develop
Minor adjustments of the last pull request
Make `tl_files.path` and `tl_files.name` case-sensitive (see #5522)