feat: add more hover effects for better UX

[keyboardreamer]

More hover effects are added to buttons, navbar and links to enhance the interactivity using tailwindcss classes

[sweep-ai]

Apply Sweep Rules to your PR?

• Apply: All new business logic should have corresponding unit tests.
• Apply: Refactor large functions to be more modular.
• Apply: Add docstrings to all functions and file headers.

[Bnyro]

This looks good to me personally, but it's certainly a matter of personal preference if the red color when hovering a link is likeable to the eyes or not.