Ws/desktop safari fullpage bezel issue

[wswebcreation]

Safari Driver on macOS returns screenshots that include the native window mask. This adds rounded corners at the bottom and a soft shadow at the top. Both elements come from the macOS window compositor and cannot be disabled through WebDriver capabilities or Safari settings.

These visual artifacts cause incorrect calculations when determining the viewable area for full page screenshots. The extra masked and shadowed regions lead to wrong scroll positions and incorrect stitching results.

This change adds a correction step for Safari on macOS:

• Detect the pixel area affected by the window mask at the bottom
• Detect the pixel area affected by the top window shadow
• Trim both areas to isolate the true viewable region
• Use the corrected region for full page screenshot calculations and stitching
• Produce a clean and fully rectangular image that matches the actual content area

and fixes #1074

[changeset-bot]

🦋 Changeset detected

Latest commit: 77bf0cb

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@wdio/image-comparison-core	Patch
@wdio/visual-service	Patch

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