use a real browser environment for unit tests

[pngwn]

This PR switches our test runner to use a browser at all times. The speeds are pretty good and will simplify testing.

This paves the way for further improvements coming shortly.

Just a few tests left to fix.

[gradio-pr-bot]

🪼 branch checks and previews

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---

Install Gradio from this PR

pip install https://gradio-pypi-previews.s3.amazonaws.com/4e7574602b302ce21022f0f7f8853816b8f3ad0d/gradio-5.29.1-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@4e7574602b302ce21022f0f7f8853816b8f3ad0d#subdirectory=client/python"

Install Gradio JS Client from this PR

npm install https://gradio-npm-previews.s3.amazonaws.com/4e7574602b302ce21022f0f7f8853816b8f3ad0d/gradio-client-1.14.2.tgz

Use Lite from this PR

<script type="module" src="https://gradio-lite-previews.s3.amazonaws.com/4e7574602b302ce21022f0f7f8853816b8f3ad0d/dist/lite.js""></script>

[gradio-pr-bot]

🦄 change detected

This Pull Request includes changes to the following packages.

Package	Version
@gradio/image	minor
@gradio/statustracker	minor
@gradio/wasm	minor
@self/spa	minor
@self/tootils	minor
gradio	minor

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use a real browser environment for unit tests

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[43081j]

if you update the workflow to run npx playwright install, it should at least get it running

you probably don't wanna do it in an npm script since locally we only need to set it up one time

[pngwn]

@43081j hero

[pngwn]

Tests are failing but they run in about 25 seconds. Which is about the same as before.

Looks pretty good from a practical point of view so I'll finish this off and we should have an easier time testing.