Set up ethereum-org-website component integration

[nathanhleung]

This PR begins the process of integrating ethereum-org-website components into the site.

Major changes:

1. The ethereum-org-website components depend on some top-level providers being present, so I created a <Root/> component which wraps every Docusaurus page to ensure those providers are present
2. The ethereum-org-website components require an extra Babel plugin, so I had to create a custom Docusaurus plugin to override the default Babel configuration

Apologies for the messy diff! I think a lot of it is my Prettier extension. I can set up a Prettier config and run it over the entire repo first in a separate PR if you want a cleaner diff.

Before

Old card component

After

New card component from ethereum.org

[MYKatz]

Looks great when running locally, but we're running into a build error (both on netlify and on my machine) -- try running yarn build.

Do you think you'll have the bandwidth to figure it out? @nathanhleung. If not I will take a crack at it later this week.

[evanmays]

@nathanhleung Try rebasing, it could have been from when I pulled a Chad and broke master

[nathanhleung]

Looks great when running locally, but we're running into a build error (both on netlify and on my machine) -- try running yarn build.

Do you think you'll have the bandwidth to figure it out? @nathanhleung. If not I will take a crack at it later this week.

damn this looks like a messy issue based on the link in the build log on netlify. maybe give it a shot @MYKatz? also try @evanmays rebasing suggestion?

can get to this on the weekend if need be too

[nathanhleung]

i'm just gonna copy and paste from the ethereum website repo instead this is too complicated