topic (iac): [misc] new bicep params and minor improvements

[ferantivero]

Purpose

Replace json arm params with bicep params, remove template warning, and provides with some cosmetic improvements from content perspective.

Does this introduce a breaking change?

[ ] Yes
[x] No

Pull Request Type

What kind of change does this Pull Request introduce?

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

How to Test

follow the README instructions

What to Check

Verify that the following are valid

• you should receive no warnings when deploying the example.
• content should be properly formatted/indented
• you can see now the params being used in this repo are bicep instead of json format.

Other Information