TechStack: Show Github Repo Tech Stack

The extension will display the tech stack of the Repo when the user visits a GitHub Public Repo.

When a user visits a Github public repository, the extension will display that repository's tech stack alongside the page. Users can more easily get more information about repositories. The Extension contain DOM blocker functionality. It will insert some new DOM element to Github repo page to display Tech stacks. But It didn't delete any DOM from the Page.