[FEAT] Add a new page for the 'Model Generation Application' (#509)

- On the Landing section of the Home page, add a card to link to the new page.
- Integrate JotForm in the new page: `http://XXX/model-generation-application`
- Add a new page for the conditions of usage for this service: `http://XXX/model-generation-application-conditions`

gatsby-config.js

@@ -84,5 +84,11 @@ module.exports = {
         timeout: 3500, //the amount of time, in milliseconds, that you want to allow mailchimp to respond to your request before timing out. defaults to 3500
       },
     },
+    {
+      resolve: `gatsby-transformer-remark`,
+      options: {
+        plugins: [`gatsby-remark-responsive-iframe`],
+      },
+    },
   ],
 };