refs #20945 [de_105] w3c validation - syntax fixes
- urlEncode links for additional authors and subjects, also remove escaping
- use record view helper in data-authors.phtml and result-list.phtml
- use instead of as container for data-toggler in EbscoResults.phtml
- use
instead of and set within in cart-buttons.phtml- encode url in footer links
- use instead of for submit button in header
- remove aria-labelledby="modal-title" from layout.phtml
co-authored by: Robert Lange robert.lange@uni-leipzig.de
- urlEncode links for additional authors and subjects, also remove escaping
- use