- Replace all 'en-US' and undefined locales with 'en-GB' in date
formatting across 15+ frontend files (dateUtils.ts, cards, routes,
Luxon calls) to consistently output day-first dates and 24h times
- Set hour12: false in all Intl.DateTimeFormat and toLocaleDateString
calls that previously used 12h format
- Pass user's svelte-i18n locale as &lang= query param from
LocationSearchMap and LocationQuickStart to the reverse-geocode API
- Extract lang param in reverse_geocode_view and forward to both
search_osm and search_google
- Add Accept-Language header to Nominatim requests so searches return
results in the user's language (e.g. Prague not Praha)
- Add languageCode field to Google Places API payload for same effect
