Make Catalog ignore Swipe-to-go-back on the first page. (#883)
Make Catalog ignore Swipe-to-go-back on the first page. (#883)

This closes
https://github.com/google/material-components-ios/issues/720.
sigito/material-components-ios,samnm/material-components-ios,brianjmoore/material-components-ios,brianjmoore/material-components-ios,Eccelor/material-components-ios,chriscox/material-components-ios,material-components/material-components-ios,sigito/material-components-ios,willlarche/material-components-ios,sigito/material-components-ios,chriscox/material-components-ios,material-components/material-components-ios,brianjmoore/material-components-ios,randallli/material-components-ios,willlarche/material-components-ios,randallli/material-components-ios,sigito/material-components-ios,samnm/material-components-ios,chriscox/material-components-ios,material-components/material-components-ios,willlarche/material-components-ios,samnm/material-components-ios,sigito/material-components-ios,Eccelor/material-components-ios,material-components/material-components-ios,randallli/material-components-ios,randallli/material-components-ios,chriscox/material-components-ios,randallli/material-components-ios,samnm/material-components-ios,randallli/material-components-ios,Eccelor/material-components-ios,willlarche/material-components-ios,brianjmoore/material-components-ios,brianjmoore/material-components-ios,material-components/material-components-ios,willlarche/material-components-ios,Eccelor/material-components-ios,chriscox/material-components-ios,Eccelor/material-components-ios,samnm/material-components-ios