Add missing peer dependencies to Gatsby package

[aaronadamsCA]

Fixes #4549 by copying missing peer dependencies from packages/nextjs/package.json.

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[AbhiPrasad]

Hey thanks for making a PR! We are current discussing peer deps in webpack plugin, so we are holding off on merging this. cc @kamilogorek

[aaronadamsCA]

No problem, and it's easily fixable locally with Yarn 3 packageExtensions, which is what I'm doing today.

[AbhiPrasad]

We'll be addressing the webpack dep here: getsentry/sentry-webpack-plugin#350, so closing this PR. Thanks for the help!

[aaronadamsCA]

Thanks @AbhiPrasad. What about the React dependency?

[AbhiPrasad]

Ah that’s my bad, we can re-open to take care of react!

[aaronadamsCA]

No problem - i'll file a new one-line PR now!

Edit: #4576

[aaronadamsCA]

@AbhiPrasad, it looks like the making-Webpack-optional got reverted (IMO correctly).

Again, my repo is fine thanks to packageExtensions, but you may want to merge this additional change after all.

[AbhiPrasad]

Yup, we should get to that, we'll update when we upgrade the webpack plugin dep across the board.