Fix immersivetoolbar styling.
Fix immersivetoolbar styling.

learningequality/kolibri,indirectlylit/kolibri,mrpau/kolibri,learningequality/kolibri,lyw07/kolibri,mrpau/kolibri,indirectlylit/kolibri,lyw07/kolibri,indirectlylit/kolibri,learningequality/kolibri,indirectlylit/kolibri,lyw07/kolibri,mrpau/kolibri,mrpau/kolibri,learningequality/kolibri,lyw07/kolibri