Add deploy buttons and clean environment variables (#974)

* add render.yaml

* Clean environment variables



---------

Co-authored-by: Charles Bochet <charles@twenty.com>

.github/workflows/ci-front.yaml

@@ -8,9 +8,7 @@ jobs:
   front-test:
     runs-on: ubuntu-latest
     env:
-      REACT_APP_API_URL: http://localhost:3000/graphql
-      REACT_APP_AUTH_URL: http://localhost:3000/auth
-      REACT_APP_FILES_URL: http://localhost:3000/files
+      REACT_APP_SERVER_BASE_URL: http://localhost:3000
     steps:
       - uses: actions/checkout@v3
         if: github.event_name == 'push'