Codesandbox sample app review

We’re using codesandbox hosted sample applications in several places in our docs. We need to review all of these to:

1. Make sure they’re all still working properly; we’ve noticed some strangeness with graphql@16 that is causing them to break.
2. Make sure they’re all moved over the apollographql codesandbox org.
3. Make sure the codesandbox links in the docs are all still pointing to valid sample apps.
4. update issue templates to include new link to template
5. if possible, setup github redirect to point to new template location
6. ensure we updates all references in docs to this template.

[MrDoomBringer]

Here’s another issue related to this https://github.com/apollographql/apollo-client/issues/9659 (shoutout alessia!)

@alessbell fix in this thread worked. Some changes we can make to the error-template repo:

1. The graphql@16 module seems to not transpile correctly on codesandboxes, see this for example. I think we can just revert graphql back down to 15.x until this is fixed

2. Codesandbox seems to no longer want *.jsx files as entrypoints, though I can’t find this actually written anywhere. Very strange. Given that the fullstack tutorial uses Typescript, I think we can kill two birds with one stone and convert the index.jsx file to an index.tsx file, both letting it actually render, and putting it in a language which most apollo-client users are probably using anyways.

CC @hwillson

Edit: Regarding issue 9659, everything seems to be an issue with codesandbox. Downloading the CS to local and running works fine.

[MrDoomBringer]

Does that mean we need to use this workaround

Nope! We can just set "main":"index.jsx" in the package.json, which feels more straightforward.