Fix: Photo modal close button unresponsive

src/components/moderation/PhotoModal.tsx

@@ -1,5 +1,5 @@
 import { useState } from 'react';
-import { ChevronLeft, ChevronRight } from 'lucide-react';
+import { X, ChevronLeft, ChevronRight } from 'lucide-react';
 import { Dialog, DialogContent } from '@/components/ui/dialog';
 import { Button } from '@/components/ui/button';
 
@@ -37,6 +37,16 @@ export function PhotoModal({ photos, initialIndex, isOpen, onClose }: PhotoModal
     <Dialog open={isOpen} onOpenChange={onClose}>
       <DialogContent className="max-w-7xl w-full max-h-[90vh] p-0">
         <div className="relative bg-black rounded-lg overflow-hidden" onKeyDown={handleKeyDown} tabIndex={0}>
+          {/* Close button */}
+          <Button
+            variant="ghost"
+            size="sm"
+            onClick={onClose}
+            className="absolute top-4 right-4 z-20 text-white hover:bg-white/10"
+          >
+            <X className="h-4 w-4" />
+          </Button>
+
           {/* Header */}
           <div className="absolute top-0 left-0 right-0 z-10 bg-gradient-to-b from-black/80 to-transparent p-4">
             <div className="text-white">