Web: Fix SayAll for rich-text editors
Web: Fix SayAll for rich-text editors

The element descendants of a rich-text editor will likely not have the
focused state like a plain-text field. The lack of focused state was
causing us to ascend the accessibility tree at the start of a SayAll
to piece together contents. Therefore also check for contenteditable
content as well.

GNOME/orca,GNOME/orca,GNOME/orca,GNOME/orca