Issue #2893568 by Wim Leers, lee.cocklin, AaronBauman, anon, ainarend: Linking in CKEditor 5: URLs with top-level domain but without protocol should get a protocol added automatically

Issue #2652850 by tstoeckler, mohit_aghera, idebr, hchonov, mbovan, rodrigoaguilera, jwilson3, pguillard, espurnes, dravenk, ainarend, handkerchief, alexpott: Title for details form elements is not set as '#markup' and it will be escaped, but all other form elements use '#markup' and are not escaped