Update _nav.scss

[mcspud]

Description

Add in a cursor: pointer style update for the theme switcher.

Checklist

Yes, I included all necessary artefacts, including:

• [x] Tests
• [x] Documentation
• [x] Implementation (Code and Ressources)
• [x] Example

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Testing Checklist

Yes, I ensured that all of the following scenarios were tested:

• [x] Desktop Light Mode (Default)
• [x] Desktop Dark Mode
• [x] Desktop Light RTL Mode
• [x] Desktop Dark RTL Mode
• [x] Mobile Light Mode
• [x] Mobile Dark Mode
• [x] Mobile Light RTL Mode
• [x] Mobile Dark RTL Mode

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[sonarqubecloud[bot]]

SonarCloud Quality Gate failed.   

1 Bug
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[lxndrblz]

@mcspud Can you take care of the issue?