[FIXES JENKINS-21092] Adaptable UI for Mobile Devices

Initial prototype implementation of adaptable UI for mobile devices (already partially working). Best result if remove "Last ..." columns of "All" view
Honestly, navigating without breadcrumbs is a massive PITA. Jenkins is basically unusable. And that for ~25 pixels? I don't even need the children + context menus, only the plain crumbs would be enough…