The Frontdesk app now includes richer demo data and clearer helper messages on key pages for stations, visitors, and drinks. A guided tour was also added, making it easier for users to understand and evaluate the app.

In this commit, we have made the following improvements:
-----------

 - Improve the demo data
 - Add some helpers in the station, visitor, and drink page
 - Add tour for the app
 
task-3524198