LibWeb: Add support for the “suggestion” ARIA role

Author: https://github.com/sideshowbarker
Commit: 96540e9f89
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2845
Reviewed-by: https://github.com/AtkinsSJ ✅

Libraries/LibWeb/ARIA/Roles.cpp

@@ -131,6 +131,7 @@ bool is_document_structure_role(Role role)
         Role::separator, // TODO: Only when not focusable
         Role::strong,
         Role::subscript,
+        Role::suggestion,
         Role::superscript,
         Role::table,
         Role::term,