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-server.yaml

@@ -29,8 +29,6 @@ jobs:
     if: needs.changed-files-check.outputs.any_changed == 'true'
     timeout-minutes: 30
     runs-on: depot-ubuntu-24.04-8
-    env:
-      NX_REJECT_UNKNOWN_LOCAL_CACHE: 0
     services:
       postgres:
         image: twentycrm/twenty-postgres-spilo
@@ -144,8 +142,6 @@ jobs:
     timeout-minutes: 30
     runs-on: depot-ubuntu-24.04-8
     needs: server-setup
-    env:
-      NX_REJECT_UNKNOWN_LOCAL_CACHE: 0
     steps:
       - name: Fetch custom Github Actions and base branch history
         uses: actions/checkout@v4
@@ -204,7 +200,6 @@ jobs:
           --health-timeout 5s 
           --health-retries 5
     env:
-      NX_REJECT_UNKNOWN_LOCAL_CACHE: 0
       NODE_ENV: test
       ANALYTICS_ENABLED: true
       CLICKHOUSE_URL: "http://default:clickhousePassword@localhost:8123/twenty"