feat(recipe): add bundle analyzer recipe

[branberry]

Description (required)

Added a recipe page on how to analyze the bundle size for an Astro project.

Related issues & labels (optional)

• Closes Recipe for analyzing bundle size #9164
• Suggested label:

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[sarah11918]

Thanks @branberry ! I can see it's a draft and you're still working on it. I just wanted to link the original issue while I was here. 🚀

[sarah11918]

Just a heads up @branberry that for accessibility and other reasons, we don't use images in docs! So please remove the image and make sure that whatever you're writing works without images. 🙌

[branberry]

Ah, thank you for pointing that out! I'll remove the image