[docz | docz-theme-default] react & react-dom is in dependencies

[MunifTanjim]

Bug Report

docz-theme-default and docz's package.json has react & react-dom in both dependencies and peerDependencies. It makes all kind of unwanted behavior in monorepo setups. For example:

If you have react & react-dom installed in the parent directory (./) and docz installed on a child directory (./site) directory, it creates a nasty bug. If you use hooks in your application, this error pops up:

Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for one of the following reasons:
1. You might have mismatching versions of React and the renderer (such as React DOM)
2. You might be breaking the Rules of Hooks
3. You might have more than one copy of React in the same app

And it is specifically caused by the point number 1 described in the error message. If you remove the parent directory's node_modules (i.e. ./node_modules) everything works fine.

To Reproduce

1. mkdir parent && cd parent && npm init
2. npm install --save-dev react react-dom
3. mkdir site && cd site && npm init
4. npm install --save-dev docz docz-theme-default
5. This will install react & react-dom in ./site/node_modules (which it should not).

Expected behavior

react & react-dom should only be in the peerDependencies

[kpaxqin]

+1, also meet this bug