Update texture map preview to object-contain to prevent cropping

src/pages/Editor.tsx

@@ -4277,9 +4277,9 @@ export default function Editor() {
                       <div 
                         onClick={() => textureInputRef.current?.click()}
                         className={cn(
-                          "w-full h-24 rounded border-2 border-dashed flex flex-col items-center justify-center gap-2 cursor-pointer transition-all",
+                          "w-full h-32 rounded border-2 border-dashed flex flex-col items-center justify-center gap-2 cursor-pointer transition-all",
                           selectedObject.materialProps?.map 
-                            ? "border-blue-500/50 bg-blue-500/5 overflow-hidden" 
+                            ? "border-blue-500/50 bg-blue-500/5 overflow-hidden p-1" 
                             : "border-zinc-800 hover:border-zinc-700 bg-zinc-800/30"
                         )}
                       >
@@ -4287,7 +4287,7 @@ export default function Editor() {
                           <img 
                             src={selectedObject.materialProps.map} 
                             alt="Texture Preview" 
-                            className="w-full h-full object-cover"
+                            className="w-full h-full object-contain rounded-sm"
                             referrerPolicy="no-referrer"
                           />
                         ) : (