Refactor swipeToAvoidGrayOverlay to ignore failures and become reusable

[ovitrif]

Fixes Random failures in the UI tests for screenshots automation. (commonly seen in wpScreenshotTests)

Refactored swipeToAvoidGrayOverlay into UiTestingUtils.swipeToAvoidGrayOverlayIgnoringFailures, reused it and made it ignore failures since it's not so critical imho.

Merging Policy Can be merged with one review.

To test:

1. CI Checks for instrumented tests should be green 🟢.

Regression Notes

1. Potential unintended areas of impact
   None

2. What I did to test those areas of impact (or what existing automated tests I relied on)
   N/a

3. What automated tests I added (or what prevented me from doing so)
   Not applicable - changes are in UI tests.

PR submission checklist:

• I have completed the Regression Notes.
• I have considered adding accessibility improvements for my changes.
• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

[zwarm]

@ovitrif - nice improvement on moving that method to utils. 👏 As soon as all tests pass, it's a 👍 . Plus I've been using the same try/catch strategy to figure out a way to actually make it work to eliminate the gray screen.

[wpmobilebot]

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[wpmobilebot]

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