Removed unused packages

Depcheck is a tool for analyzing the dependencies in a project to see: how each dependency is used, which dependencies are useless, and which dependencies are missing from package.json.

The package can be installed and ran using the following commands:

npm install depcheck -g
yarn global add depcheck

depcheck

Or you can use npx (a package runner):

npx depcheck

One thing to note: be careful removing packages within the devDependencies list. Although the packages in this list is not installed with the --production flag, it is typically used for packages that are only needed for local development and testing.