refactor: styling changes to the client desk and navigation bar

[KumbiraiShonhiwa]

Pull Request

Description:

added styling to the navigation bar

Related Issues:

[Reference any related issues or documents.]

Type of Change:

• [ ] Bug Fix
• [x] New Feature
• [x] Enhancement
• [x] Refactoring
• [ ] Documentation Update

Checklist:

• [x] My code follows the coding standards of this project.
• [x] I have performed a self-review of my code.
• [x] I have added/updated relevant documentation.
• [x] My changes generate no new warnings or errors.
• [x] I have tested my changes.

Screenshots (if applicable):

[Add screenshots to help reviewers understand the changes visually.]

Reviewers:

• @reviewer1
• @reviewer2

Additional Notes:

[Any additional information that may be helpful for reviewers.]

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 72.05%. Comparing base (6022890) to head (0c21d7f).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #232 +/- ## ======================================== Coverage 72.05% 72.05% ======================================== Files 32 32 Lines 773 773 Branches 33 33 ======================================== Hits 557 557 Misses 190 190 Partials 26 26 ```

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