feat(remix-react): make actionData available in meta function

[kenneth-gray]

Hey folks 👋

Thought I'd give this a go as it didn't take long - no hard feelings if you feel it's the wrong way to go of course!

Things to consider:

• As mentioned in the discussion I suspect it would be nicer to rename data => loaderData, but that's a breaking change to the API.
• If data was renamed to loaderData, should parentsData be renamed to parentsLoaderData?
• I started to wonder if the cookie header should also be made available (if it's not http only), so that if your strategy is to use session cookies for error messaging then you'd be able to access that too.

Closes: #3524

• Docs
• Tests

Testing Strategy:

This test covers this code: integration/meta-test.ts (added additional test)

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[remix-cla-bot]

Thank you for signing the Contributor License Agreement. Let's get this merged! 🥳

[MichaelDeBoey]

Hi @kenneth-gray!

Are you still interested in getting this one merged?

If so, please rebase onto latest dev & resolve conflicts

[kenneth-gray]

Yes very interested, will sort it out 👍

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[kenneth-gray]

Wanted to get the merge conflicts out of the way before sinking any more time into the PR.

[kenneth-gray]

Will attempt to update changes into V2 and sort out all the testing as well. Probably won't be in a good position till the very end of the week.

[timkraut]

@kenneth-gray Any update on this one? I'd happily help to get this over the finish line if there is anything I can do. I'm desperately looking for this feature

[kenneth-gray]

@timkraut Feel free to take my contribution and make it your own. I ended up getting V1 working, but not finding the time to make it work for V2.