Use Knip for detecting dead code

[bayasdev]

What does this do

This PR replaces the deprecated ts-prune package with Knip for detecting dead code in our React codebase. Knip offers more comprehensive dead code detection with additional features like identifying unused dependencies, exports, and types.

Overview

• Removed ts-prune in favor of knip
• Fixed all warnings found by Knip
• Added unlisted dependencies to the package.json
• Added format command