Fix CodeMark Playwright Tests.

[bstopp]

Description

Fixes an unstable playwright test for the codemark. This supersedes #777

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

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Commits

• 85ca00c ✅ (latest)
• dcdcba6 ❌

[bstopp]

Ran this command and every run passed:

for i in {1..10}; do PW_TEST_HTML_REPORT_OPEN='never' npx playwright test -g "Add code mark" --project=chromium; done

[bstopp]

Why does this change work? Watching the tests, it appears that page.waitForTimeout... is causing the ProseMirror editor to reload.