Code Quality: Fix CSS class typo - `transition-color` should be `transition-colors`

Problem

There's a CSS class typo in the navbar component. The class transition-color should be transition-colors according to Tailwind CSS naming conventions.

Current Behavior

The navbar back button uses transition-color which is not a valid Tailwind CSS class.

Expected Behavior

Should use the correct Tailwind CSS class transition-colors for proper color transitions.

Location

File: src/components/navbar.astro
Line: 16

Current Code

<a
  href={returnNav.location}
  class="flex items-center w-6 h-6 justify-center bg-none hover:bg-black text-black hover:text-white rounded-full border border-black/60 transition-color ease-in-out duration-400"
>

Proposed Fix

<a
  href={returnNav.location}
  class="flex items-center w-6 h-6 justify-center bg-none hover:bg-black text-black hover:text-white rounded-full border border-black/60 transition-colors ease-in-out duration-400"
>

Why This Matters

• transition-color is not a valid Tailwind CSS class
• transition-colors is the correct class for transitioning color properties
• This ensures the hover transition works as intended
• Improves code consistency and correctness

Tailwind CSS Reference

The correct class transition-colors applies these CSS properties:

transition-property: color, background-color, border-color, text-decoration-color, fill, stroke;
transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
transition-duration: 150ms;

Steps to Test

1. Fix the class name typo
2. Test the navbar back button hover effect
3. Verify the color transition works smoothly
4. Ensure no other functionality is affected

Additional Context

This is a good first issue because:

• ✅ Simple one-character fix
• ✅ Improves code correctness
• ✅ Easy to verify and test
• ✅ Good learning opportunity for Tailwind CSS

Definition of Done

• Change transition-color to transition-colors
• Verify hover transition works correctly
• Test that no other functionality is broken
• Confirm the fix follows Tailwind CSS standards