* fix(package.json): Resolve react/react-dom dependency conflict for embedded users
Some of the recent changes around the script-tag support for ohif/Viewers included moving react and
react-dom from peerDependencies to dependencies. This caused an error for embedded consumers of the
viewer because there could be multiple versions of react included. The error in the console points
to this link: https://reactjs.org/warnings/invalid-hook-call-warning.html. These changes are
necessary to resolve the issue for embedded users and don't seem to break the standalone version
either.
* fix(script-tag/index.html): Add `react` and `react-dom` as external scripts for cypress tests
The cyrpress tests won't pass unless we add the `react` and `react-dom` dependencies as external
scripts since they're no longer first order depdencies.
* Creates E2E tests using Cypress and includes two tests
* Improves yarn.lock file
* Includes documentation
* Cypress project id
* test e2e w/ ci and video
* run unit command before e2e
* Also cache cypress
* Persist cypress to next build step
* Try a different path
* Try without working dir
* Persist less data, but restore yarn/cypress cache in next step
* Install cypress to invalidate cache
* Add e2e as a blocker for merged publishing
