Ensure hidden text indicator is only visible on mobile
Ensure hidden text indicator is only visible on mobile

Before the i18n changes it used to only have a background image on
mobile platform. But since texts are localized, the text also became
visible on desktop browsers.

Modularfield/pageflow,tilsammans/pageflow,tf/pageflow-dependabot-test,schoetty/pageflow,tf/pageflow-dependabot-test,tf/pageflow,grgr/pageflow,codevise/pageflow,codevise/pageflow,schoetty/pageflow,codevise/pageflow,luatdolphin/pageflow,BenHeubl/pageflow,tilsammans/pageflow,Modularfield/pageflow,BenHeubl/pageflow,codevise/pageflow,Modularfield/pageflow,grgr/pageflow,BenHeubl/pageflow,luatdolphin/pageflow,tilsammans/pageflow,tf/pageflow-dependabot-test,tf/pageflow-dependabot-test,tf/pageflow,grgr/pageflow,luatdolphin/pageflow,tilsammans/pageflow,tf/pageflow,schoetty/pageflow,tf/pageflow,Modularfield/pageflow