docs: Improve not property sections

[Chris (cpAdm)]

not properties have two code blocks [auto-generated], reduce it to one

Example before:

After:

[Dmitry Gozman (dgozman)]

Thank you for the PR, looks great!

[github-actions]

Test results for "tests 1"

5 flaky

⚠️ [chromium-library] › library/popup.spec.ts:258 › should not throw when click closes popup `@chromium-ubuntu-22.04-node20`
⚠️ [chromium-library] › library/inspector/recorder-api.spec.ts:120 › should type `@chromium-ubuntu-22.04-node22`
⚠️ [chromium-library] › library/popup.spec.ts:258 › should not throw when click closes popup `@chromium-ubuntu-22.04-node22`
⚠️ [firefox-library] › library/inspector/cli-codegen-1.spec.ts:1082 › cli codegen › should not throw csp directive violation errors `@firefox-ubuntu-22.04-node20`
⚠️ [webkit-page] › page/page-autowaiting-basic.spec.ts:79 › should await form-post on click `@webkit-ubuntu-22.04-node20`

34241 passed, 663 skipped

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Merge workflow run.

[github-actions]

Test results for "MCP"

8 failed
❌ [chromium] › mcp/cli.spec.ts:573 › versions › very old daemon @mcp-ubuntu-latest
❌ [chrome] › mcp/autowait.spec.ts:19 › racy navigation destroys context @mcp-windows-latest
❌ [chrome] › mcp/cli.spec.ts:386 › devtools › video-start-stop @mcp-macos-15
❌ [chrome] › mcp/launch.spec.ts:21 › test reopen browser @mcp-macos-15
❌ [chromium] › mcp/cli.spec.ts:361 › devtools › network --static @mcp-macos-15
❌ [chromium] › mcp/cli.spec.ts:386 › devtools › video-start-stop @mcp-macos-15
❌ [webkit] › mcp/click.spec.ts:77 › browser_click (right) @mcp-macos-15
❌ [webkit] › mcp/config.spec.ts:62 › browserName @mcp-macos-15

3594 passed, 129 skipped

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Merge workflow run.