fix: CSS-фильтр contrast(1.3) brightness(0.85) для проявления зданий

frontend/src/components/MapView.tsx

@@ -134,6 +134,7 @@ export default function MapView() {
 
   return (
     <div className="relative h-full w-full">
+      <style>{'.leaflet-tile-pane { filter: contrast(1.3) brightness(0.85); }'}</style>
       {mapError ? (
         <div className="flex h-full w-full items-center justify-center">
           <div className="text-center">