feat: add fullscreen button

[cloudflare-workers-and-pages[bot]]

Deploying astrobook with    Cloudflare Pages

Latest commit:	8952b23
Status:	✅  Deploy successful!
Preview URL:	https://c6b4ed7c.astrobook.pages.dev
Branch Preview URL:	https://ocavue-fullscreen.astrobook.pages.dev

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[changeset-bot[bot]]

⚠️ No Changeset found

Latest commit: 8952b2361954bfbb3d2b80abe66803fdf0494371

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[pkg-pr-new[bot]]

commit: 8952b23

pnpm add https://pkg.pr.new/ocavue/astrobook@18

pnpm add https://pkg.pr.new/ocavue/astrobook/@astrobook/core@18

pnpm add https://pkg.pr.new/ocavue/astrobook/@astrobook/types@18

pnpm add https://pkg.pr.new/ocavue/astrobook/@astrobook/ui@18

Open in Stackblitz • astrobook-playground