Fix preprocess for components when type='index'

[abidlabs]

Fix for #5557

[gradio-pr-bot]

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Install Gradio from this PR

pip install https://gradio-builds.s3.amazonaws.com/7b2054fd761e6ef36d00f0bf920612757f1e5ac9/gradio-3.44.2-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@7b2054fd761e6ef36d00f0bf920612757f1e5ac9#subdirectory=client/python"

[gradio-pr-bot]

🦄 change detected

This Pull Request includes changes to the following packages.

Package	Version
gradio	minor

• Maintainers can select this checkbox to manually select packages to update.

With the following changelog entry.

Fix preprocess for components when type='index'

Maintainers or the PR author can modify the PR title to modify this entry.

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• If the bot has failed to detect any changes, or if this pull request needs to update multiple packages to different versions or requires a more comprehensive changelog entry, maintainers can update the changelog file directly.

[yvrjsharma]

lgtm, thanks!