Swaps the peaks-over-a-road glyph for a location pin on a route line
in both the favicon and the BrandMark component, so the mark stays
legible at 16px favicon size and reads more literally as fleet/route
tracking. Palette unchanged (navy #0f172a, teal #2dd4bf).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
There was no favicon at all -- index.html never linked one, and the
frontend Dockerfile's build stage never copied the public/ directory
into the build context, so even after adding public/favicon.svg
locally, the containerized build silently dropped it (nginx fell back
to serving index.html for that path). Fixed both: index.html links
/favicon.svg, and the Dockerfile now copies public/ alongside src/.
The favicon reuses the existing BrandMark glyph (petrol background,
teal accent) for visual consistency with the in-app brand mark.
A regression test for this lives in the earlier translation-fix commit
(frontend/e2e/fleet-ops-correction.spec.ts), added together with the
fix at the time.