* Add tracking src dir usage to telemetry
* Move isSrcDir back to eventVersion
* Move spinner back
* Add test for isSrcDir telemetry
* Add test for dev mode
* Use Better Telemetry Directory
So, as it turns out, storing in `node_modules` is a bad idea.
Both npm and Yarn will remove additional files when you run `npm install` or `yarn install`.
Instead, we'll store this inside of Next.js' `distDir`. This should also be cached by users, if it's not, it probably won't be any worse as compared to `node_modules`.
* Fix directory name
* Fix build setup
* Record when export session is started
* Move more into branch
