Fix API info bug

[freddyaboulton]

Description

We should copy the api_info prior to modifying the urls for file-based components. This copy only happens once.

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🦄 change detected

This Pull Request includes changes to the following packages.

Package	Version
gradio	patch

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Fix API info bug

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[abidlabs]

Sorry @freddyaboulton can you explain why we need to do this? What bug is this PR addressing?

[freddyaboulton]

I noticed that the api_info route stores references to values in the config dict. So it's possible for code in the info route to change values in the config. So it's better if we copy the data (only once) prior to making any modifications.

[abidlabs]

tested and lgtm for now, but this will further degrade performance for apps with large numbers of api endpoints, so I think we should switch to #9574 soon

[abidlabs]

I'll go ahead and get this in so that we have fewer open PRs, thanks @freddyaboulton!