Merge branch 'develop'

Version 2.7.10 - Fixes metadata column count issue.

Version 2.7.9 - Small fix to copy link functionality.

Version 2.7.4.

Version 2.7.3

Preparing for 2.5: translations and tested up to.

Version 2.4.2.1

Fixes breadcrum issue on attachment pages.

Keeps the themes.json file as experimental for now.

Removes card class shadow on metadata list.