Entropy's Defiance 3.1.0

A big update across reliability, speed, and design. • Fixed tasks vanishing: an unreadable or mid-sync task file is no longer mistaken for an empty one, so your tasks are never wiped by a momentary hiccup. • Much snappier: the app drawer keyboard and closing the drawer are now instant, and unused per-app icon loading was removed. • Prompts to be set as the default launcher, and adds a "Default launcher" entry in Permissions (helps on phones that never ask). • Calendar agenda redesigned: clear d