Issue #3374519 by rex.barkdoll: Keeping Custom Attributes in CKEditor

CHANGELOG.txt

src/Form/BlazyAdminBase.php

src/Form/BlazyAdminFormatterBase.php

src/Plugin/Filter/BlazyFilter.php

src/Plugin/Filter/BlazyFilterBase.php

src/Plugin/Filter/BlazyFilterUtil.php

src/Plugin/Filter/TextFilterBase.php

src/Theme/Grid.php

src/Utility/Sanitize.php

src/Views/BlazyStyleBaseTrait.php