Fix: Search stories

[Vlad160]

Issue: #10519

Search throws errors on the current release in prod mode. The issue is that for dev mode webpack uses filenames as values of modules found using require.context. But in prod mode, it uses numbers to minimize the size.

Submitting these changes to master because this bug is not reproducible of next. On the next branch, there is a check that parameters.fileName is a string.
However, these changes should be cherry-picked to next

What I did

Use filename for require.key() instead of require.resolve()

How to test

1. Bootstrap
2. Build examples/official-storybook
3. cd ../storybook-static
4. npx http-server .
5. Search in Strorybook

[stale]

Hi everyone! Seems like there hasn't been much going on in this issue lately. If there are still questions, comments, or bugs, please feel free to continue the discussion. Unfortunately, we don't have time to get to every issue. We are always open to contributions so please send us a pull request if you would like to help. Inactive issues will be closed after 30 days. Thanks!

[Vlad160]

Thanks @ndelangen