* update eslint, tsconfig + esbuild to handle new jsx transform
* remove thing that breaks the new jsx transform
* remove react imports
* adjust grafana-icons build
* is this the correct syntax?
* try this
* well this was much easier than expected...
* change grafana-plugin-configs webpack config
* fixes
* fix lockfile
* fix 2 more violations
* use path.resolve instead of require.resolve
* remove react import
* fix react imports
* more fixes
* remove React import
* remove import React from docs
* remove another react import
* adds `npm start` / `yarn start` script
* starts a webpack-dev-server using the dev config, served on :3333
* hot reloading (HMR) for react/styles, not working for angular code
* new entry `dev.ts` for dynamic imports of CSS theme (ExtractText does
not work with HMR)
* TS loader pipeline moved out of common to add HMR for react
* applied `hot()` to some react containers (that's their new default
export, named exports remains for testing)
* added sections to README
* updated yarn.lock