Issue #3477188: Move add to library link to the form actions as a button.

Checkpoints

• File an issue
• Addition/Change/Update/Fix
• Merge request
• Testing to ensure no regression
• Automated unit testing coverage
• Automated functional testing coverage
• UX/UI designer responsibilities
• Readability
• Accessibility
• Performance
• Security
• Documentation
• Code review by maintainers
• Full testing and approval
• Credit contributors
• Review with the product owner

Closes #3477188

added 12 commits

• 77d6a28a...3c5cb1a0 - 11 commits from branch project:1.2.x
• d93326c2 - Merge branch '1.2.x' into '3477188-add-add-this'

Compare with previous version

added 1 commit

• e0c9cfc7 - Fix closing of dialog.

Compare with previous version