Docs: mention trace viewer as debugging tool for the Mouse API class

[gwennlbh]

I had to go search this and found out about this way of seeing where the mouse is through #16546

Putting it in the docs will save people some time :)

[agg23]

@gwennlbh, this PR is stalled as your change isn't passing our linter. It looks like your link paths aren't correct.

[gwennlbh]

ok so i figured it out -- i see two problems with the linter:

1. having multiple links triggers weird messages from the linter:

   docs/src/api/class-mouse.md references to '/home/runner/work/playwright/playwright/docs/src/running-tests.md#debug-tests-with-the-playwright-inspector' as 'Trace viewer](../trace-viewer-intro.md) or [Playwright Inspector' which does not exist

2. you can't have a hash to link to a specific section, the linter thinks the link is wrong

[gwennlbh]

@microsoft-github-policy-service agree

[agg23]

1. I believe your path lookup is failing.

2. I don't understand. We use anchors all of the time
   

   playwright/docs/src/accessibility-testing-java.md

   Line 207 in 301481f

   The following example demonstrates extending the `TestFixtures` class from the [Test Runners example](./test-runners#running-tests-in-parallel) with a new fixture that contains some common `AxeBuilder` configuration.

[gwennlbh]

1. I believe your path lookup is failing.

latest lint error comes from a diff in the generated .d.ts files that include docs as part of their docstring comments, this is a clean tree check that runs after lints, so the path lookup does not fail anymore

[github-actions]

Test results for "tests 1"

1 failed
❌ [playwright-test] › runner.spec.ts:118:5 › should ignore subprocess creation error because of SIGINT @macos-latest-node18-1

5 flaky

⚠️ [firefox-library] › library/inspector/cli-codegen-1.spec.ts:986:7 › cli codegen › should not throw csp directive violation errors @firefox-ubuntu-22.04-node18
⚠️ [chromium] › headerView.spec.tsx:46:1 › should toggle filters @web-components-html-reporter
⚠️ [webkit-library] › library/inspector/cli-codegen-pick-locator.spec.ts:35:7 › should update locator highlight @webkit-ubuntu-22.04-node18
⚠️ [webkit-page] › page/page-screenshot.spec.ts:345:5 › page screenshot › should work while navigating @webkit-ubuntu-22.04-node18
⚠️ [playwright-test] › ui-mode-test-watch.spec.ts:145:5 › should watch all @windows-latest-node18-1

39318 passed, 818 skipped
✔️✔️✔️

Merge workflow run.

[mxschmitt]

Thanks!