Include correct version in production builds (#3163)

* take the first 8 characters for frontend version, not backend version

* run `npm run build` after version has been updated in CI

* `pack` should run last

.circleci/config.yml

@@ -81,9 +81,9 @@ jobs:
       - checkout
       - run: sudo apt install python-pip
       - run: npm install
+      - run: .circleci/update_version
       - run: npm run bundle
       - run: npm run build
-      - run: .circleci/update_version
       - run: .circleci/pack
       - store_artifacts:
           path: /tmp/artifacts/