Add Theme Toggle (Light/Dark/Colorblind Modes)

[RyderKeeny]

Description:
After the front-end visualization is mostly completed, update the CSS and UI components to support multiple visual themes. Add a toggle or button on the home page that allows users to switch between light mode, dark mode, and a colorblind-friendly mode designed for common red-green colorblind types (deuteranopia/protanopia).

Requirements:

• Implement a theme toggle component/button on the home page.

• Light and dark themes should apply globally across all components.

• Add a third theme optimized for red-green colorblind accessibility (e.g., adjusted color palettes and contrast ratios).

• Ensure smooth transitions when switching themes.

[bryan-bong]

I'd like to work on this