Move CLIENT_ID envars to be fetched from backend for (cloud) integration options

backend/src/variables/index.ts

@@ -16,7 +16,8 @@ import {
     INTEGRATION_NETLIFY_TOKEN_URL,
     INTEGRATION_HEROKU_API_URL,
     INTEGRATION_VERCEL_API_URL,
-    INTEGRATION_NETLIFY_API_URL
+    INTEGRATION_NETLIFY_API_URL,
+    INTEGRATION_OPTIONS
 } from './integration';
 import {
     OWNER,
@@ -73,5 +74,6 @@ export {
     INTEGRATION_NETLIFY_API_URL,
     EVENT_PUSH_SECRETS,
     EVENT_PULL_SECRETS,
-    ACTION_PUSH_TO_HEROKU
+    ACTION_PUSH_TO_HEROKU,
+    INTEGRATION_OPTIONS
 };