Add Swift webview configuration files and corresponding test cases

[ESS-ENN]

Summary by CodeRabbit

• New Features

  • Introduced security rules for Swift webviews to enhance user protection against JavaScript vulnerabilities and fraudulent sites.
  • Added configurations to warn developers about potential security risks related to JavaScript window opening and fraudulent site warnings.

• Tests

  • Implemented new test cases to validate the behavior of JavaScript window opening preferences and fraudulent site warnings in webview configurations.
  • Added snapshots to ensure accurate testing of the WKPreferences class settings.

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Walkthrough

The changes introduce two new rule configuration files for Swift webviews: swift-webview-config-allows-js-open-windows-swift.yml and swift-webview-config-fraudulent-site-warning-swift.yml. The former warns against allowing JavaScript to open windows automatically, while the latter identifies configurations that opt out of fraudulent site warnings. Additionally, corresponding test cases and snapshots are created to validate these configurations, ensuring that the properties JavaScriptCanOpenWindowsAutomatically and isFraudulentWebsiteWarningEnabled are correctly managed in various scenarios.

Changes

File Path	Change Summary
rules/swift/security/swift-webview-config-allows-js-open-windows-swift.yml	New rule added: swift-webview-config-allows-js-open-windows-swift to warn about JavaScript window opening.
rules/swift/security/swift-webview-config-fraudulent-site-warning-swift.yml	New rule added: swift-webview-config-fraudulent-site-warning-swift and utility function for fraudulent site warnings.
tests/__snapshots__/swift-webview-config-allows-js-open-windows-swift-snapshot.yml	Snapshot added for JavaScriptCanOpenWindowsAutomatically property set to true.
tests/__snapshots__/swift-webview-config-fraudulent-site-warning-swift-snapshot.yml	Snapshots added for testing isFraudulentWebsiteWarningEnabled property in different states.
tests/swift/swift-webview-config-allows-js-open-windows-swift-test.yml	New test case for validating JavaScriptCanOpenWindowsAutomatically behavior.
tests/swift/swift-webview-config-fraudulent-site-warning-swift-test.yml	New test configuration for testing fraudulent website warning settings.

Poem

In the webview's dance, a rule takes flight,
To guard against risks, both day and night.
With warnings in place, we hop with glee,
Ensuring our code is as safe as can be! 🐇✨
A leap for security, a bound for the best,
In the land of Swift, we outshine the rest!

---

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