Remove Duplicate 'text-center' Class

[KagemaNjoroge]

Hi,

I've removed a duplicate 'text-center' class from a JSX element in the code. The class was applied twice, causing unnecessary duplication of styling. This PR aims to improve code cleanliness and reduce potential conflicts.

Changes Made:

• Removed the duplicate 'text-center' class from components/PostCard.jsx

Before:

<div className="flex items-center justify-center mb-4 lg:mb-0 w-full lg:w-auto mr-8 items-center">
  {/* Content */}
</div>

After:

<div className="flex  justify-center mb-4 lg:mb-0 w-full lg:w-auto mr-8 items-center">
  {/* Content */}
</div>

This change ensures that the element's styling is consistent while keeping the codebase cleaner. Please review and merge if it looks good.
Thumbs 👍 up for the tutorials.

Thank you!