Admin UI in development mode (ctrl+u) shows wrong or outdated snippets

[saoudi-h]

Describe the bug
Admin UI in development mode (ctrl+u) shows wrong or outdated snippets on addNavMenuSection

To Reproduce
Steps to reproduce the behavior:

1. Run Admin UI in dev mode
2. go to admin and login
3. use the ctrl + u keyboard shortcut to see the location of all UI extension points.
4. click on Nav Menu Section one (ex: Catalogue)

Expected behavior
This should show a plausible snippet

Environment (please complete the following information):

• @vendure/core version: 2.2.0
• Nodejs version: 20.9
• Database (mysql/postgres etc): postgres

Additional context

we should take out "routerLink" since the sections can't be clicked on, and add "items" because it's required