Website: Update /start questionnaire to update leads (#18120)

Changes: 
- Updated the `save-questionnaire-progress` to send a request to Zapier
when a user completes the "What are you using Fleet for" step of the
/start questionnaire.

website/api/controllers/save-questionnaire-progress.js

@@ -59,6 +59,22 @@ module.exports = {
       await User.updateOne({id: this.req.me.id}).set({
         primaryBuyingSituation
       });
+      // Send a POST request to Zapier
+      await sails.helpers.http.post.with({
+        url: 'https://hooks.zapier.com/hooks/catch/3627242/3pl7yt1/',
+        data: {
+          primaryBuyingSituation,
+          emailAddress: this.req.me.emailAddress,
+          webhookSecret: sails.config.custom.zapierSandboxWebhookSecret,
+        }
+      })
+      .timeout(5000)
+      .tolerate(['non200Response', 'requestFailed'], (err)=>{
+        // Note that Zapier responds with a 2xx status code even if something goes wrong, so just because this message is not logged doesn't mean everything is hunky dory.  More info: https://github.com/fleetdm/fleet/pull/6380#issuecomment-1204395762
+        sails.log.warn(`When a user completed the 'What are you using Fleet for' questionnaire step, a lead/contact could not be updated in the CRM for this email address: ${this.req.me.emailAddress}. Raw error: ${err}`);
+        return;
+      });
+
       // Set the primary buying situation in the user's session.
       this.req.session.primaryBuyingSituation = primaryBuyingSituation;
     }

website/assets/js/pages/start.page.js

@@ -75,7 +75,7 @@ parasails.registerPage('start', {
     }
     // If this user has not completed the 'what are you using fleet for' step, and has a primaryBuyingSituation set by an ad. prefill the formData for this step.
     if(this.primaryBuyingSituation && _.isEmpty(this.formData['what-are-you-using-fleet-for'])){
-      this.formData['what-are-you-using-fleet-for'].primaryBuyingSituation = _.clone(this.primaryBuyingSituation);
+      this.formData['what-are-you-using-fleet-for'] = {primaryBuyingSituation: this.primaryBuyingSituation};
     }
   },
   mounted: async function() {