Improve API error handling in JS Client

[l2dy]

Description

Fix a silent error in the catch clause, matching how errors are handled in

gradio/client/js/src/utils/upload_files.ts

Lines 39 to 41 in b6bcd04

	} catch (e) {
	throw new Error(BROKEN_CONNECTION_MSG + (e as Error).message);
	}

Closes: N/A (small fix)

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Install Gradio from this PR

pip install https://gradio-pypi-previews.s3.amazonaws.com/dc3668699550ec86a777199a42b663f2cb4c2651/gradio-5.23.1-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@dc3668699550ec86a777199a42b663f2cb4c2651#subdirectory=client/python"

Install Gradio JS Client from this PR

npm install https://gradio-npm-previews.s3.amazonaws.com/dc3668699550ec86a777199a42b663f2cb4c2651/gradio-client-1.14.0.tgz

Use Lite from this PR

<script type="module" src="https://gradio-lite-previews.s3.amazonaws.com/dc3668699550ec86a777199a42b663f2cb4c2651/dist/lite.js""></script>

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This Pull Request includes changes to the following packages.

Package	Version
@gradio/client	minor
gradio	minor

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Improve API error handling in JS Client

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[hannahblair]

hi @l2dy! Looks good! The tests are failing now because they're written to expect non-failure. Now that we're throwing an error, can you update it to expect that?

[hannahblair]

@l2dy If you need some help, you can comment out the failing test and I can come back to it - there are some improvements to that test that should be made anyway 🙂