Fix CI cache for storybook (#14038)

In this PR:
- Migrate twenty-ui to ES2020 (removing undesired type errors during
build)
- Make CI cache work again between `sb-build` and `sb-test` steps

(Note: also fixing a minor bug on Notes)

Total CI time: ~8min
<img width="1088" height="531" alt="image"
src="https://github.com/user-attachments/assets/0bd0a99a-c69e-491d-91b2-9ddf6622464a"
/>

Both node_modules and sb-build caches are being hit now
<img width="1154" height="722" alt="image"
src="https://github.com/user-attachments/assets/a5addcee-51d2-4f51-9ff6-d02cd25da49a"
/>

.github/workflows/ci-shared.yaml

@@ -21,8 +21,6 @@ jobs:
     if: needs.changed-files-check.outputs.any_changed == 'true'
     timeout-minutes: 30
     runs-on: ubuntu-latest
-    env:
-      NX_REJECT_UNKNOWN_LOCAL_CACHE: 0
     strategy:
       matrix:
         task: [lint, typecheck, test]