Features:
- Main screen: Add new task; Re-shuffle tasks
- Shuffle presented with animations
- Tap task box to highlight
- Task Highlight mode:
- Tap the task box again to edit;
- Toggle completeness (marked by stars)/group (by color)
- Backburn/delete to get rid of temporarily/permanently
- Delete needs confirmation
- Back burn means task is assigned the lowest priority. Upon reshuffling 9 tasks of highest priority are picked from the task pool.
