Refactor FXIOS-12796 [Swift 6 Migration] Fix main actor isolation warnings that are Swift 6 errors in the XCUITests suite - Batch 1

[ih-codes]

📜 Tickets

Jira ticket
Github issue

💡 Description

Fix main actor isolation warnings that are Swift 6 errors in the XCUITests suite.

• Isolate all UI tests to the main thread via BaseTestCase inheritance
• Isolate each PageScreens/*Screen.swift file to the main thread

This takes the XCUITest suite from over 11,000 warnings to 950 🎉
▶️

cc @Cramsden @lmarceau @dataports

📝 Checklist

• I filled in the ticket numbers and a description of my work
• I updated the PR name to follow our PR naming guidelines
• I ensured unit tests pass and wrote tests for new code
• If working on UI, I checked and implemented accessibility (Dynamic Text and VoiceOver)
• If adding telemetry, I read the data stewardship requirements and will request a data review
• If adding or modifying strings, I read the guidelines and will request a string review from l10n
• If needed, I updated documentation and added comments to complex code

[clarmso]

🚀 @ih-codes Let's fix all the warnings. Let me know if you need any help.

[ih-codes]

Thanks @clarmso!! I will let you know if/as we come across any tough warnings. 😁

[mobiletest-ci-bot]

💪 Quality guardian

36 tests files modified. You're a champion of test coverage! 🚀

🌱 Tiny but mighty

Only 39 line(s) changed. Fast to review, faster to land! 🚀

💬 Description craftsman

Great PR description! Reviewers salute you 🫡

✅ Per-file coverage

All changed files meet the threshold of 35.0%.

Generated by 🚫 Danger Swift against be17b0c

[ih-codes]

Bitrise succeeded! 🎉 🎉 🎉

[github-actions]

🚀 PR merged to main, targeting version: 146.1