minor fix in vue component to update thirdparty firstname

src/Bundle/ChillPersonBundle/Resources/public/vuejs/AccompanyingCourse/components/Resources/ResourceItem.vue

@@ -168,6 +168,7 @@ export default {
          }
          else if (payload.type === 'thirdparty') {
             console.log('data', payload.data)
+            body.firstname = payload.data.firstname;
             body.name = payload.data.name;
             body.email = payload.data.email;
             body.telephone = payload.data.telephone;