Update Dashboard Navigation guide

[hey-august]

Addresses #163

Type of Change

• New documentation
• Update to existing documentation

Documentation Change Details

• Changes Summary: Brief summary of the changes

Checklist:

• My documentation follows the style guidelines of this project
• I have performed a self-review of my documentation
• My changes generate no new warnings
• Builds successfully locally

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Lighthouse	1 paths audited Performance: 22 (🔴 down 24 from production) Accessibility: 91 (no change from production) Best Practices: 92 (no change from production) SEO: 89 (no change from production) PWA: - View the detailed breakdown and full score reports

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