remove umani script from index.html as it is not used since some month

[Angra974]

First thing, PLEASE READ THIS: ReactPlay Code Review Checklist

Description

We have an api call made for analystic with Umani.
This one is not use since Mai 2023 ( when looking at last projects ) and certainly before this.

The environment variable was removed some time ago too.

current .env.development file =>

@atapas is ok to remove this as it's a know issue.

Fixes #1295

Type of change

Just remove the javascript code in the public/index.html file

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Run the application on multiple page to see if the api is called or not.

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce.

Load the application and check inside the debugger if the api is called.

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

Screenshots or example output

From Mai 2033 ( index.html in public folder ):

Before change =>
The api is called and create a js error

After change => No api call, no error related

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