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

This reverts commit c072e2175598ec55157ddc1f0a3127e49af5c8e2.

frontend/src/components/MapView.tsx

@@ -134,7 +134,6 @@ 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">