feat: Update recent posts content for better relevance

[akshay0611]

Summary:
This PR updates the content of the recent posts section to improve clarity, relevance, and engagement. The changes aim to better communicate the blog's diverse range of topics and its value to readers.

Changes Made:

• Rewrote the content of <p class="card-text"> for each card to provide meaningful and engaging descriptions.
• Replaced repetitive titles with unique and descriptive ones for each post.
• Updated image alt attributes for better accessibility and context.
• Ensured alignment with existing CSS styles and framework conventions.

Testing:

• Verified responsiveness across different screen sizes.
• Ensured proper rendering of the cards and their content.

Related Issue:
Closes #9