0.5.4

Added

• Tasks completed today now group together above your remaining active tasks, instead of staying mixed in with them. The group has a small gap below it to keep it visually distinct from the active list — and it stays visible regardless of the eye-icon toggle (which still controls older, past-completed items).
• Completing a task animates it sliding up into that group, and any other tasks that shift position as a result animate along with it instead of jumping into place.