Get hot reloading to work for development

[kumar303]

Describe the problem and steps to reproduce it:

• Start all development processes with yarn dev
• Open Redux Developer Tools
• Sign in to the app
• Sign out
• Open components/App/index.tsx and edit the text saying "Please log in..."

What happened?

The page does a full refresh to show the new text. You lose all of your Redux state.

What did you expect to happen?

The App component should be hot reloaded to show the new text, preserving Redux state.

Anything else we should know?

Upstream issue: facebook/create-react-app#6503

[willdurand]

I don't think this is blocked by anything. For some reason, it seems to work 😅