docs: disclaimer that UI not Splunk Supported

[ikheifets-splunk]

Description

disclaimer that UI not Splunk Supported

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Dependency update
• Bug fix
• New feature
• Refactor/improvement
• 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?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

Checklist

• My commit message is conventional
• I have run pre-commit on all files before creating the PR
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• 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
• I have checked my code and corrected any misspellings

[ajasnosz]

Please note that the UI is not officially supported as part of the SC4SNMP project. We are actively working on this issue and anticipate a resolution in the near future.