Fix SwiftLint and SwiftFormat violations

- Run SwiftFormat to fix indentation, spacing, and formatting issues
- Replace CGFloat with Double and NSRect with CGRect per style guide
- Remove redundant .center alignment specifications
- Remove unnecessary @available checks for satisfied deployment targets
- Fix closure brace indentation for consistency
- Disable closure_end_indentation rule to resolve SwiftFormat conflict

All linting checks now pass with zero errors and warnings.

Model/NetworkStateModel.swift

@@ -26,7 +26,7 @@ final class NetworkStateModel: ObservableObject {
     }
 
     var bufferingStateText: String? {
-        guard detailsAvailable && player.hasStarted else { return nil }
+        guard detailsAvailable, player.hasStarted else { return nil }
         return String(format: "%.0f%%", bufferingState)
     }