Switch to eslint-plugin-jsdoc and remove lint-condo.

ESLint has deprecated jsdoc support since 2018 and instead recommends eslint-plugin-jsdoc.

lint-condo does not have eslint-plugin-jsdoc. We only use lint-condo for eslint currently and it is simpler to instead use yarn to install and manage eslint.

Some module files had JSDoc comments which violated the jsdoc plugin's more correct rules.

This removes our reliance on lint-condo and fixes up our jsdoc validation in one swoop.