Don't activate Say All profile if there is nothing to read (#11453)
* Don't actibate Say All profile if there is nothing to read
Fixes https://github.com/nvaccess/nvda/issues/10899
Fixes https://github.com/nvaccess/nvda/issues/9947
* Update what's new
Co-authored-by: Michael Curran <mick@nvaccess.org>