Request to refine the UX for multiple template choices

[hangwan97]

Is your feature request related to a problem? Please describe.
Java on Azure team is providing a new template - Spring AI sample into the current generator. The new generator will offer customers to choose different samples at the initiation stage - The original TODO app and the new AI app. The generator is currently hosted on https://start.jhipster.tech/generate-azure-application

Describe the solution you'd like
We would like to add a drop down list in the the current UI, the drop down list will contain all initializer samples.

Describe alternatives you've considered
Add a new tab/page for the new sample. But that would cause a lot more efforts than simply add a drop down list. The Java on Azure team will provide the CLI version.

Additional context
N/A