Autocompletion on code editor component

[whitphx]

Description

Context: internal link
Before implementing a customized autocompletion source, this PR just introduces the autocomplete option on gr.Code.

Light:

Dark:

In Playground:

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If this PR is ok, I will try to implement the "smarter" autocompletion for Python using jedi

[gradio-pr-bot]

🪼 branch checks and previews

•	Name	Status	URL
	Spaces	ready!	Spaces preview
	Website	ready!	Website preview
	Storybook	ready!	Storybook preview
🦄	Changes	detecting...

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Install Gradio from this PR

pip install https://gradio-pypi-previews.s3.amazonaws.com/baf1bf401be55b468bbfd4e5afbcaa372d617e02/gradio-5.20.1-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@baf1bf401be55b468bbfd4e5afbcaa372d617e02#subdirectory=client/python"

Install Gradio JS Client from this PR

npm install https://gradio-npm-previews.s3.amazonaws.com/baf1bf401be55b468bbfd4e5afbcaa372d617e02/gradio-client-1.13.1.tgz

Use Lite from this PR

<script type="module" src="https://gradio-lite-previews.s3.amazonaws.com/baf1bf401be55b468bbfd4e5afbcaa372d617e02/dist/lite.js""></script>

[gradio-pr-bot]

🦄 change detected

This Pull Request includes changes to the following packages.

Package	Version
@gradio/code	minor
@gradio/lite	minor
gradio	minor
website	minor

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

With the following changelog entry.

Autocompletion on code editor component

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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.

[aliabd]

This is great @whitphx! working as expected :)

Can we also add it to the lite playground element? Would just need to make the change here:

gradio/js/lite/src/Playground.svelte

Lines 143 to 149 in 3232cdd

	<Code
	bind:value={code}
	language="python"
	lines={10}
	readonly={!loaded}
	dark_mode={active_theme_mode === "dark"}
	/>

[whitphx]

@aliabd Thank you! I forgot about it.. pushed the change adding it and will merge the PR once it passes the CI.