Introduce opensearch_security.configuration.admin_pages_enabled setting to be able to disable security admin pages

[cwperks]

Description

Introduces an opensearch_dashboards.yml setting to be able to disable Security from the menu for all users. The setting is opensearch_security.configuration.admin_pages_enabled, is true by default and needs to be explicitly disabled.

Currently, the behavior is to display Security in the main menu only for a Security admin user. To determine whether a user is a Security admin, security-dashboards-plugin runs an API request and determines if the logged in user is mapped to one of the plugins.security.restapi.roles_enabled roles.

Category

Enhancement

Issues Resolved

• [FEATURE] Introduce a feature flag to disable Security screens #1961

Testing

Manual testing to ensure disabling the Security screens doesn't cause any other issues. The user still needs to be able to reset their password, view their user info and switch tenants.

Marking this as Draft until functional tests are added.

Check List

• New functionality includes testing
• New functionality has been documented
• Commits are signed per the DCO using --signoff

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[codecov]

Codecov Report

Attention: Patch coverage is 31.03448% with 20 lines in your changes are missing coverage. Please review.

Project coverage is 69.94%. Comparing base (37c2695) to head (002b3d3).
Report is 1 commits behind head on main.

Files	Patch %	Lines
public/plugin.ts	31.03%	20 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1963      +/-   ##
==========================================
+ Coverage   69.91%   69.94%   +0.03%     
==========================================
  Files          97       96       -1     
  Lines        2506     2519      +13     
  Branches      336      351      +15     
==========================================
+ Hits         1752     1762      +10     
- Misses        673      674       +1     
- Partials       81       83       +2     

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