- Beacon map defaults to just the marker at zoom 11. A daisyUI toggle
switch shows/hides the estimated-coverage cell layer; the coverage
info line and tier legend are hidden unless the toggle is on.
- Beacon detail list replaced with a compact dl grid (2-4 columns).
Lat/lon rounded to 5 decimals, power/height/beamwidth formatted via
Beacon.format_mw/1 so no more "2.5e3" scientific notation or "280.0".
format_mw/1 hoisted onto the schema so index and show share it.
- About page no longer uses prose classes (this project doesn't load
@tailwindcss/typography). Headings, lists, and paragraphs now use
explicit utility classes so they render as intended.