🧹 [Refactor openPreferences methods to reduce duplication]

[hatimhtm]

🧹 [Refactor openPreferences methods to reduce duplication]

🎯 What: The code health issue addressed was the duplication of the methods openAccessibilityPreferences and openAutomationPreferences in AppDelegate.swift.
💡 Why: Combining these into a single method openPreferences(for: String) improves maintainability and readability by eliminating duplicated logic and creating a reusable pattern for opening other preference panes in the future.
✅ Verification: I verified the change by manually inspecting all usages and making sure they correctly supply "Accessibility" or "Automation" as the pane string argument to the new method. Note: The environment does not have macOS build tools like swift or xcodebuild, so actual compilation couldn't be done, but a static code review confirmed correctness and absence of syntax errors.
✨ Result: The codebase is cleaner, shorter, and more DRY (Don't Repeat Yourself), without changing existing behavior.

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PR created automatically by Jules for task 7080275980248817072 started by @hatimhtm

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