small validation fix

src/screens/InAppScreens/TravelsScreen/CreateSharedTrip/index.tsx

@@ -198,6 +198,9 @@ const CreateSharedTripScreen = ({ route }: { route: any }) => {
                 if (regions.length === 0) {
                   return;
                 }
+                if (photos.length > 0 && !values.photo) {
+                  return;
+                }
                 setIsSubmitting(true);
 
                 const regionsToSave = regions.map((region) => region.id);