v0.12.0 — a more distinct look

• New type scale, shape scale, and a blue accent color, replacing stock Material3 defaults
• Line numbers now show as outlined badges, lateness as a filled status pill, and departure times use tabular numerals so they stop jittering on refresh
• Map selection and the selected route no longer share colors with "late" or "on time" status: selection is blue, the on-route line and its stops are mustard
• Fixed the map's locate/favourites buttons, which were unintentionally rendering stock Material purple instead of the app's own colors