feat: enhance rain animation visibility

components/weather/weather-hero.tsx

@@ -40,7 +40,7 @@ export function WeatherHero({ station, locationName, distanceKm }: { station: Sy
       <WeatherEffects station={station} mood={mood} />
       <div className="absolute -right-20 -top-20 size-72 rounded-full bg-white/15 blur-3xl" />
       <div className="absolute -bottom-24 -left-16 size-72 rounded-full bg-cyan-200/15 blur-3xl" />
-      <div className="relative">
+      <div className="relative z-10">
         <div className="flex flex-wrap items-center gap-3">
           <span className="flex items-center gap-1.5 text-sm font-medium text-white/85"><MapPin className="size-4" />{locationName ?? station.name}</span>
           {locationName && <span className="text-xs text-white/65">{t("location.heroSource", { station: station.name, distance: distanceKm ?? 0 })}</span>}