Nuxflo mobile gets bigger, brighter, and faster to use

This update makes Nuxflo mobile quicker to scan and more satisfying to use.

• Home is now a colorful training launchpad with larger actions and a compact progress strip.
• Learn and Practice use swipeable shelves, faster search, and less explanatory clutter.
• Login, profile, support, games, quizzes, and assessments use larger controls and clearer task-focused layouts.
• Short motion cues add energy while keeping training sessions focused and accessible.