fix: Selection enabled below BlogAppBar

Summary This PR fixes the padding in the Blog Appbar, so that selection below the app bar is enabled.

Image of the issue ( Before )

Image of the Fix ( After )

PR Fixes:

• 1 Changed the CSS class of the blog app bar <motion.div> to adjust the padding.
• 2 Padding changed from p-6 to pt-6 px-6 pb-0 to change bottom padding to 0 and enable selection of below content.

Resolves #[743]

Checklist before requesting a review

• [x] I have performed a self-review of my code
• [x] I assure there is no similar/duplicate pull request regarding same issue