chore(docs): Revert dependency versions to stable nextra 3. #44

Job	Run time
Runtime / Deno Lint	6s
CLI / Lint and Check	1m 14s
Compiler / Lint and Check	24s
Compiler / Test and Release	1m 9s
CLI / Release (aarch64-apple-darwin)	3m 51s
CLI / Release (aarch64-unknown-linux-musl)	3m 22s
CLI / Release (x86_64-apple-darwin)	3m 50s
CLI / Release (x86_64-unknown-linux-musl)	2m 37s
Runtime / Deno Test	25s
Std / re	1m 10s
Host / storage	22s
Std / test	49s
Host / network	46s
Host / time	27s
Host / dom	35s
Std / json	1m 19s
Std / math	1m 24s
CLI / Test	1m 50s
Docs / Build	1m 3s
Cloudflare Upload (CDN)	32s
Demo	26s
Docs / Deploy	26s
	28m 7s

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