Adding jQuery to Contentful app

I need to create a Contentful app that exposes the WYSYWYG editor summernote to Contentful.

This editor is a bit outdated and relies on jQuery. That is why I need to add jQuery to the React App that serves the Contentful app.

How can I add jQuery? I am aware of craco which lets you adjust the Webpack config of a CRA and I am fine to set up craco but I am struggeling to add jQuery. Or are there other ways to add jQuery without craco?