Upgrade frontend dependencies

[jeremyyap]

Left with Jest 22. Modifying window.location.pathname with Object.defineProperty no longer works due to jsdom having been upgraded to 11.

https://github.com/facebook/jest/blob/master/CHANGELOG.md
jestjs/jest#5124

Other breaking changes:

• react-scroll: fisshy/react-scroll@5326638
• material-ui: https://github.com/mui-org/material-ui/blob/master/CHANGELOG.md

Also, we can consider upgrading to Babel 7.
https://medium.com/@jdolle/babel-7-beta-instructions-aed5cf17048b

[kxmbrian]

redux-form, react-player, css-loader and expose-loader just made new releases in the past couple of days. Should we also upgrade style-loader and react-dropzone?

Didn't see any breaking changes indicated on those. Maybe can update and then we can merge this first, then do jest in a separate PR?

Would prefer to wait for Babel to move out of beta, but don't think it's a problem to move now also.

[jeremyyap]

style-loader and react-dropzone versions have been updated in yarn.lock. Is there a specific command I should be using such that the versions in package.json would be updated as well?

[kxmbrian]

Referring to this, can try yarn upgrade --latest or yarn upgrade-interactive --latest. You'll have to revert yarn.lock first though.

[kxmbrian]

Thanks @jeremyyap!