Ux fixes for page header

[derek-ho]

Description

This PR fixes a few issues with the UX for the new page header/home feature flag. It does the following:

• Removes Extra spacing on the audit log page
• Adds the role/user name into the breadcrumbs on the edit page to give context using the breadcrumbs

Category

Enhancement

Why these changes are required?

Fix: opensearch-project/OpenSearch-Dashboards#2106

What is the old behavior before changes and new behavior after changes?

See screenshots

Issues Resolved

Fix: opensearch-project/OpenSearch-Dashboards#2106

Testing

Existing tests pass, updated snapshots

Check List

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

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license. For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 25.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 71.40%. Comparing base (c143bce) to head (9949cb6). Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
public/apps/configuration/app-router.tsx	25.00%	3 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main opensearch-project/OpenSearch-Dashboards#2108 +/- ## ========================================== + Coverage 71.39% 71.40% +0.01% ========================================== Files 97 97 Lines 2650 2651 +1 Branches 403 404 +1 ========================================== + Hits 1892 1893 +1 Misses 642 642 Partials 116 116 ```

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[derek-ho]

Created issue here for binary failure: https://github.com/opensearch-project/security-dashboards-plugin/issues/2118

[derek-ho]