use new button component

Signed-off-by: Vanessa Pertsch <vanessa.pertsch@nextcloud.com>

Signed-off-by: Vanessa Pertsch <vanessa.pertsch@posteo.com>
Signed-off-by: Vanessa Pertsch <vanessa.pertsch@posteo.de>
Signed-off-by: nextcloud-command <nextcloud-command@users.noreply.github.com>