料理名や食材リストに入力がなくてもダイアログが出るバグを修正

frontend/src/pages/AddRecipe.tsx

@@ -121,6 +121,7 @@ const AddRecipe: React.FC = () => {
       console.log("yes2");
       return false;
     }
+    return true;
   }
 
   const handleSubmit = async () => {
@@ -143,7 +144,8 @@ const AddRecipe: React.FC = () => {
   }
 
   const openNumOfPeopleDialog = async () => {
-    await checkRecipeAndItems();
+    const check = await checkRecipeAndItems();
+    if (!check) return false;
     setOpenNumOfPeapleDialog(true);
   }