Improve usability for "Fisa de asistenta sociala/ Date aditionale despre copii" table to match the design

Link to design: https://www.figma.com/design/gpOGCkb9B6pTfe1DvleVMm/Sunrise?node-id=11317-47904&t=DTHBQJQrCIswcFBF-4

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- To add a grey background to the variables in the header (for each child), so that users can scan the list more easily

- To add the view-mode/ read-only header in edit mode as well, instead of the current version where we have disabled/inactive fields