feat: Removing the feature flag able to learner and admin tab

[jdhanenkula]

Description:

This PR removes the enterprise_invite_admins_enabled feature flag and enables the Learners tab and Admin tab functionality for all customers by default. The goal of this task is to:

1. Remove all conditional rendering based on the enterprise_invite_admins_enabled feature flag.
2. Remove feature flag references from Redux state and component props.
3. Clean up unused imports and related dead code.
4. Update and maintain unit tests to align with the new default behavior.
5. Ensure all customers can access the Learners tab and Admin tab along with their existing functionalities.

Jira:

ENT-11269

Merge checklist:

• Removed all conditional rendering based on the enterprise_invite_admins_enabled feature flag.
• Removed feature flag usage from Redux and component props.
• Cleaned up unused imports and obsolete code paths.
• Verified Learners tab and Admin tab functionality is visible for all customers.
• Updated unit tests and ensured all tests are passing

TESTING:

• Unit test cases were updated and executed successfully for the related code changes.
• Verified that:
  • Learners tab is visible without feature flag dependency.
  • Admin tab and its functionalities are accessible for all customers.
  • No feature flag checks remain in the codebase.
• All existing and updated unit tests are passing successfully.

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[mphilbrick211]

Hi @jdhanenkula! Welcome, and thank you for this contribution! In order for your CLA check to turn green, you'll need to submit a CLA form. If you are contributing as an individual, please fill out the individual CLA form here.

If you are contributing on behalf of an organization, please have your manager reach out to oscm@axim.org so you may be added to your org's existing entity agreement.

Please let me know if you have any questions. Thanks!

[mphilbrick211]

Hi @jdhanenkula! Checks have been enabled on this pull request. It looks like there's a failing check and some branch conflicts - please take a look when you have a minute. Thanks!