Cache with SWR

[ericclemmons]

I'm adding https://github.com/vercel/swr to handle auto-refreshing & fetching (via stale-while-revalidate) of chunks.

SWR has more options we can take advantage of (particularly with dropping axios in favor of fetch so we can leverage the built-in browser cache), but for now this does the following:

• Return null while loading.
• Return the default content on error.
• Return the chunk on data.

📦 Published PR as canary version: 2.0.1-canary.4.1c93912.0

✨ Test out this PR locally via:

npm install [email protected]
# or 
yarn add [email protected]

[github-actions]

🚀 PR was released in v2.0.1 🚀