docs: lp2p: update

[swift1337]

No description provided.

[greptile-apps]

Greptile Summary

This PR substantially rewrites and expands the lib-p2p experimental documentation for CometBFT, restructuring it with Mintlify UI components (Warning, Info), adding new configuration sections for the Queue Scaler and Resource Manager, a new Metrics reference section, and registering the page in the site navigation (docs.json). The Combined Mode section has been removed and replaced with a reference to AdaptiveSync.

• Documentation restructure: Sections reorganized with clearer headings, Mintlify Warning/Info callouts, and improved prose throughout.
• New configuration examples: Expanded config.toml snippets covering [p2p.libp2p.scaler] and [p2p.libp2p.limits] with tuning guidance.
• New CLI example: Added cometbft show-node-id --libp2p snippet for printing a node's lib-p2p peer ID.
• Metrics section added: Lists key Prometheus metric names for queue-scaler and resource tuning.
• Navigation: lib-p2p page added to the Experimental group in docs.json.
• Minor issues: A grammatical error ("alongside with" → "alongside"), a missing sentence-ending period in the first Warning block, trailing whitespace in a TOML comment, a missing colon on the Metrics section intro, and a missing newline at end of docs.json.

Confidence Score: 4/5

• This PR is safe to merge; it is a documentation-only change with no functional code impact.
• All changes are documentation and navigation config. No logic, security, or runtime issues were found. The only concerns are minor prose and formatting nits (grammatical error, missing punctuation, trailing whitespace, missing EOF newline) that do not affect functionality.
• No files require special attention beyond the minor style nits noted in the inline comments.

Important Files Changed

Filename	Overview
cometbft/next/docs/experimental/lib-p2p.mdx	Substantial rewrite of the lib-p2p documentation: restructured with Mintlify Warning/Info components, added Queue Scaler and Resource Manager configuration sections, a new Metrics section, updated TOML config examples, and removed the Combined Mode section. Minor issues found: grammatical error ("alongside with"), missing period in Warning block, trailing whitespace in a TOML comment, and missing punctuation on the Metrics intro line.
docs.json	Adds cometbft/next/docs/experimental/lib-p2p to the Experimental navigation group. The only issue is a missing newline at end of file.

_{Last reviewed commit: "add cli notes"}