[BUG] quick follow up on user level setting

[Hailong-am]

Describe the bug

follow up to resolve comments on this backport PR
#8057

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
A clear and concise description of what you expected to happen.

OpenSearch Version
Please list the version of OpenSearch being used.

Dashboards Version
Please list the version of OpenSearch Dashboards being used.

Plugins

Please list all plugins currently enabled.

Screenshots

If applicable, add screenshots to help explain your problem.

Host/Environment (please complete the following information):

• OS: [e.g. iOS]
• Browser and version [e.g. 22]

Additional context

Add any other context about the problem here.