Improve design of api recorder

[aliabd]

Just makes the buttons better and has a better recording feel.

https://github.com/gradio-app/gradio/assets/9021060/5f209aa0-e2c2-4c5a-b9c0-b276c2389422

https://github.com/gradio-app/gradio/assets/9021060/48c70539-844f-4ea4-ad63-434942623d72

Also fixes up the banner. vs

[gradio-pr-bot]

🪼 branch checks and previews

•	Name	Status	URL
	Spaces	ready!	Spaces preview
	Website	building...
	Storybook	ready!	Storybook preview
:unicorn:	Changes	detected!	Details

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Install Gradio from this PR

pip install https://gradio-builds.s3.amazonaws.com/93c1a4d540c9ab693b1194555e96a081983ceef4/gradio-4.33.0-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@93c1a4d540c9ab693b1194555e96a081983ceef4#subdirectory=client/python"

Install Gradio JS Client from this PR

npm install https://gradio-builds.s3.amazonaws.com/93c1a4d540c9ab693b1194555e96a081983ceef4/gradio-client-0.20.1.tgz

[gradio-pr-bot]

🦄 change detected

This Pull Request includes changes to the following packages.

Package	Version
@gradio/app	patch
gradio	patch

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

With the following changelog entry.

Improve design of api recorder

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

#### Something isn't right?

- Maintainers can change the version label to modify the version bump. - 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](https://github.com/gradio-app/gradio/edit/aliabd/api-recorder-design/.changeset/pink-bananas-sleep.md).

[abidlabs]

Beautiful @aliabd! I'll just fix the functional test and then this should be good to merge