Dark mode feature

[abhi9ab]

This PR introduces a dark mode feature to the Cal-Buddy application using the shadcn/ui library. The dark mode provides an alternative theme that is easier on the eyes, especially in low-light environments.

Changes

• Implemented dark mode toggle functionality.
• Applied dark mode styles using shadcn/ui across all major components and pages.
• Added a persistent setting to remember user preference for dark mode.
• Updated the navigation bar to include a dark mode toggle switch.
• Ensured compatibility and responsiveness across different devices and screen sizes.

Screenshots
Dark Mode:

Related Issues
Issue #11 - Implement Dark Mode

[vercel]

@abhi9ab is attempting to deploy a commit to the Chirag Aggarwal's projects Team on Vercel.

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[ChiragAgg5k]

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