feat: Migrate SideNavMobile to Shadcn/Tailwind

[ashiskumar-1999]

Description

Migrated the Chakra-UI imports to the Shadcn/Tailwind

[netlify]

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Lighthouse	7 paths audited Performance: 47 (🔴 down 9 from production) Accessibility: 92 (no change from production) Best Practices: 87 (🔴 down 11 from production) SEO: 98 (no change from production) PWA: - View the detailed breakdown and full score reports

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