improve email regex; improve error handling for query review

app/controllers/queryReview.js

@@ -122,9 +122,39 @@ const postQueryReview = async (req, res) => {
 
   searchRequest.email = emailInput;
   searchRequest.subscribed = true;
-  await searchRequest.save();
 
-  await notifyForNewSearchRequest(searchRequest);
+  try {
+    await searchRequest.save();
+  } catch (e) {
+    console.log("[ERROR] Failed to save search request !", e);
+    console.log("Search request : ", searchRequest);
+    const error =
+      "Greška ! Nismo uspjeli kreirati zahtjev za Vašu pretragu. Molimo pokuštajte ponovo";
+    res.render("queryReview", {
+      error,
+      title,
+      queryReviewData,
+      email: ""
+    });
+    return;
+  }
+
+  try {
+    await notifyForNewSearchRequest(searchRequest);
+  } catch (e) {
+    console.log("[ERROR] Failed to send initial welcome email", e);
+    console.log("Search request : ", searchRequest);
+
+    const error =
+      "Greška ! Nismo uspjeli poslati email na Vašu adresu, pokušajte sa drugom email adresom";
+    res.render("queryReview", {
+      error,
+      title,
+      queryReviewData,
+      email: ""
+    });
+    return;
+  }
 
   res.redirect(nextStep);
 };