Add Post Editing Feature

[aryad14]

Implement a feature that allows users to edit their blog posts after publishing. Ensure the changes are tracked and can be reverted if needed.

[swaraj017]

Please assign this issue to me !

Methodology:

1. Initiate Edit : User clicks the "Edit" button on the blog post.

2)Fetch Current Content: Retrieve the current post data from the database and populate the edit form.

3)Update Content : User modifies the content in the form and submits changes.