feat(zendesk): add zendesk integration (#1385)

* feat(zendesk): add zendesk integration

* Add Zendesk connection documentation

* docs(zendesk/connection): add missing steps

* feat(zendesk): add more auth scopes for planned triggers/actions

* fix(zendesk): fix instanceUrl

---------

Co-authored-by: Ali BARIN <ali.barin53@gmail.com>

packages/backend/src/apps/zendesk/index.ts

@@ -0,0 +1,16 @@
+import defineApp from '../../helpers/define-app';
+import addAuthHeader from './common/add-auth-headers';
+import auth from './auth';
+
+export default defineApp({
+  name: 'Zendesk',
+  key: 'zendesk',
+  baseUrl: 'https://zendesk.com/',
+  apiBaseUrl: '',
+  iconUrl: '{BASE_URL}/apps/zendesk/assets/favicon.svg',
+  authDocUrl: 'https://automatisch.io/docs/apps/zendesk/connection',
+  primaryColor: '17494d',
+  supportsConnections: true,
+  beforeRequest: [addAuthHeader],
+  auth,
+});