Fix the name of the spring apps instance to be globally unique.

[pmalarme]

Fix the name of the spring apps instance to be globally unique. Add some more defences to globally unique name to be sure it always insert the unique part.

Purpose

• Use globally unique name for Spring Apps
• Improve globally unique resource name by ensuring that the unique string is always present in the name when generated
• Improve the documentation of the parameters
• Test the changes

Does this introduce a breaking change?

[ ] Yes
[x] No

Pull Request Type

What kind of change does this Pull Request introduce?

[x] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

How to Test

• Create a new environment named dev with azd env new
• Deploy the solution
• Check that the deployment works and that the solution is working too

What to Check

Verify that the following are valid

• The deployment complete until the end without errors
• The application is running properly
• The documentation of the parameters is precise

Other Information

[aarthiem]

Thanks for the fix!