test: wait for message to arrive before searching for it [WPB-22420]

[markbrockhoff]

WPB-22420 [Web] General maintenance ticket for PR merges

Pull Request

Summary

This should reduce some flake we're currently experiencing in some of the in conversation search tests

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Security Checklist (required)

• External inputs are validated & sanitized on client and/or server where applicable.
• API responses are validated; unexpected shapes are handled safely (fallbacks or errors).
• No unsafe HTML is rendered; if unavoidable, sanitization is applied and documented where it happens.
• Injection risks (XSS/SQL/command) are prevented via safe APIs and/or escaping.

Accessibility (required)

• I have read and this PR upholds our Accessibility Best Practices.

Standards Acknowledgement (required)

• I have read and this PR upholds our Coding Standards and Tech Radar Choices.

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Screenshots or demo (if the user interface changed)

Notes for reviewers

• Trade-offs:
• Follow-ups (linked issues):
• Linked PRs (e.g. web-packages):

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

🔗 Download Full Report Artifact

🧪 Playwright Test Summary

• ✅ Passed: 259
• ❌ Failed: 1
• ⏭ Skipped: 15
• 🔁 Flaky: 5
• 📊 Total: 280
• ⏱ Total Runtime: 730.7s (~ 12 min 11 sec)

specs/Authentication/authentication.spec.ts (❌ 1 failed, ⚠️ 0 flaky)

• ❌ Authentication > Verify current browser is set as temporary device (tags: TC-3460, regression)

specs/Conversations/conversations.spec.ts (❌ 0 failed, ⚠️ 1 flaky)

• ⚠️ Conversations > I want to see a system message with all group members mentioned on creating a group (tags: TC-2965, regression)

specs/Edit/edit.spec.ts (❌ 0 failed, ⚠️ 1 flaky)

• ⚠️ Edit > I want to see the last edited text including a timestamp in message detail view if the message has been edited (tags: TC-3563, regression)

specs/InConversationSearch/inConversationSearch.spec.ts (❌ 0 failed, ⚠️ 1 flaky)

• ⚠️ In Conversation Search > Verify results are sorted - latest message on top of list (tags: TC-398, regression)

specs/Notifications/notifications.spec.ts (❌ 0 failed, ⚠️ 1 flaky)

• ⚠️ Notifications > No message content is written on notification when 'Show sender' item is selected in preferences (tags: TC-1451, regression)

specs/Status/status.spec.ts (❌ 0 failed, ⚠️ 1 flaky)

• ⚠️ Status > I want to see a popup when I change my status (tags: TC-8772, regression)