Changes the screen-share aspect ratio on the publisher side
&screenshareaspectratiosets the aspect ratio for screen-shares on the publisher side.
&aspectratioworks with screen-shares, so you can force crop an incoming screen-share to be a certain aspect ratio. If
&screenshareaspectratiois used it will apply to just screen-shares. If
&screenshareaspectratiodoes not have a value passed, it's assumed to be set as "default", which overrides
&aspectratiooption, if used also.