Adding instructions on how to build Gradio-Lite locally

[abidlabs]

Plus some minor changes to the contributing doc

[gradio-pr-bot]

🪼 branch checks and previews

•	Name	Status	URL
	Spaces	ready!	Spaces preview
	Website	failed!	Details
	Storybook	ready!	Storybook preview
	Visual tests	1 failing test	Build review
🦄	Changes	detected!	Details

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Install Gradio from this PR

pip install https://gradio-builds.s3.amazonaws.com/7c656c4f1464f836571d58dc3b6dd3b09f9ef315/gradio-4.12.0-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@7c656c4f1464f836571d58dc3b6dd3b09f9ef315#subdirectory=client/python"

[gradio-pr-bot]

🦄 no changes detected

This Pull Request does not include changes to any packages.

__No changes detected. __

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[whitphx]

@abidlabs I added some changes. Please check it, thanks.

[abidlabs]

Thanks @whitphx for updating the scripts! I renamed the launch_lite.sh script to run_lite.sh to be more parallel with run_frontend.sh and build_frontend.sh.

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When I run build_lite.sh and run_lite.sh, both of the scripts run successfully, but I see some errors when opening the webpage in my browser in both cases.

For run_lite.sh, I see:

The console is not particularly helpful:

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For build_lite.sh, again the script runs successfully in the terminal, but then I see:

in the browser, with the console basically showing the same error.

Are these errors expected?

[whitphx]

@abidlabs Thanks!

For run_lite.sh

• Building @gradio/client is necessary so @gradio/lite imports the latest code of it. I forgot documenting it but added the script to run_lite.sh as fe0ab0c
• Even after building @gradio/client as above, the current main branch is not working anyway. The fix is Use EventSource_factory in open_stream() for Wasm #6820.
• To inspect the error, the instruction written in Add a dev instruction for lite in SharedWorker mode #6778 might help, btw.

For build_lite.sh

Found a bug, sorry. I created the fix: #6887

[abidlabs]

Thanks so much @whitphx for the fixes! Looks like everything is now working as expected

[whitphx]

Thanks!