🔹 Improve Blog Section Titles and Descriptions

[akshay0611]

The blog section currently has placeholder text that does not align with the fitness theme of the website. To enhance user engagement and readability, update the card titles and card descriptions with relevant fitness-related content.

Tasks:

• Update blog post titles to be more relevant.
• Modify descriptions to provide meaningful fitness insights.
• Ensure text remains concise and informative.