Fail early if cannot get a OK response when submitting user phone number

https://github.com/pH-7/GoodJsCode?tab=readme-ov-file#fail-fast-principle

client/components/modals/NotifyMeModal.tsx

@@ -78,14 +78,21 @@ export const NotifyMeModal: React.FC<NotifyMeModalProps> = ({
 
   const handleSubmit = async () => {
     try {
-        const formData = new FormData();
-        formData.append("entry.PHONE_NUMBER_FIELD_ID", phoneNumber);
-
-        await fetch(AppInfo.GOOGLE_FORM_WAITING_LIST_URL, {
-            method: "POST",
-            mode: "no-cors",
-            body: formData,
-            });
+      const formData = new FormData();
+      formData.append("entry.PHONE_NUMBER_FIELD_ID", phoneNumber);
+
+      const response = await fetch(AppInfo.GOOGLE_FORM_WAITING_LIST_URL, {
+        method: "POST",
+        mode: "no-cors",
+        body: formData,
+      });
+      // fail-early if response is't OK
+      if (!response.ok) {
+        throw new Error(
+          "We couldn't submit your phone number. Please try again.",
+        );
+      }
+
       onSubmitSuccess();
       //setPhoneNumber("");
     } catch (error) {