fix: ensure localStorage keys are properly checked before removal in proceedToNext function

src/views/ShootingView.vue

@@ -150,11 +150,15 @@ const proceedToNext = () => {
     const keysToRemove = []
     for (let i = 0; i < localStorage.length; i++) {
       const key = localStorage.key(i)
-      if (key && key.startsWith('photobooth-1x4-') || key.startsWith('photobooth-2x2-')) {
+      if (key && (key.startsWith('photobooth-1x4-') || key.startsWith('photobooth-2x2-'))) {
         keysToRemove.push(key)
       }
     }
-    keysToRemove.forEach(key => localStorage.removeItem(key))
+    keysToRemove.forEach(key => {
+      if (key !== null) {
+        localStorage.removeItem(key)
+      }
+    })
 
     // เก็บรูปภาพไว้ใน localStorage
     localStorage.setItem('photobooth-photos', JSON.stringify(photos.value))