v1.2.0 - Liquid Glass

What's Changed

• Adopted the modern Liquid Glass platform baseline across iOS, iPadOS, macOS, and visionOS.
• Restored and verified visionOS support for the release train.
• Improved browser state coverage and removed duplicated browser logic.
• Split iOS and macOS UI test coverage, deflaked bookmark/history/settings surfaces, and added stronger release validation coverage.
• Added Xcode Cloud support scripts and fixed the CI script working directory.
• Added App Store screenshot/preview generation tooling and attached the generated App Store asset package to this release.

Verification

• xcodebuild test -project iGopherBrowser.xcodeproj -scheme iGopherBrowserTests -destination "platform=macOS" passed: 19 tests, 0 failures.
• App Store Connect review doctor was clean for iOS, macOS, and visionOS before release prep.