fix check for more camera-device options

src/components/GiftedPhotoDialog.vue

@@ -74,7 +74,7 @@
               <fa icon="left-right" class="w-[1em]"></fa>
             </button>
           </div>
-          <div v-if="numDevices > -1" class="absolute bottom-2 right-4">
+          <div v-if="numDevices > 1" class="absolute bottom-2 right-4">
             <button
               @click="switchCamera()"
               class="bg-blue-500 hover:bg-blue-700 text-white font-bold p-3 rounded-full text-2xl leading-none"