fix(format/html): fix double emitting comments sometimes

[dyc3]

Summary

Prettier's parser fundamentally treats comments differently than we do. It treats comments as actual nodes in the markup, but we treat them as trivia. To match this behavior more closely, we try to split children of an element into an iter of HtmlChild so we can iterate over the children easier.

This PR fixes a case where that wasn't happening correctly. Now we prefer the comment we get as an HtmlChild, and skip formatting it as trivia.

Generated by opus 4.5

fixes #8803

Test Plan

Added snapshots.

Docs

[changeset-bot]

🦋 Changeset detected

Latest commit: 32da29c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 13 packages

Name	Type
@biomejs/biome	Patch
@biomejs/cli-win32-x64	Patch
@biomejs/cli-win32-arm64	Patch
@biomejs/cli-darwin-x64	Patch
@biomejs/cli-darwin-arm64	Patch
@biomejs/cli-linux-x64	Patch
@biomejs/cli-linux-arm64	Patch
@biomejs/cli-linux-x64-musl	Patch
@biomejs/cli-linux-arm64-musl	Patch
@biomejs/wasm-web	Patch
@biomejs/wasm-bundler	Patch
@biomejs/wasm-nodejs	Patch
@biomejs/backend-jsonrpc	Patch

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[codspeed-hq]

Merging this PR will degrade performance by 7.19%

❌ 2 regressed benchmarks
✅ 1 untouched benchmark
🆕 1 new benchmark
⏩ 152 skipped benchmarks¹

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
❌	index_1033418810622582172.html[cached]	102 µs	109.9 µs	-7.19%
❌	index_1033418810622582172.html[uncached]	118.2 µs	126.6 µs	-6.65%
🆕	html_analyzer[index_1033418810622582172.html]	N/A	397.8 µs	N/A

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_{Comparing dyc3/fix-double-emit-comment (32da29c) with next (0e8e623)}

Footnotes

1. 152 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩