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bool get isMobileDevice => !kIsWeb && (Platform.isIOS || Platform.isAndroid);
bool get isDesktopDevice =>
!kIsWeb && (Platform.isMacOS || Platform.isWindows || Platform.isLinux);
bool get isMobileDeviceOrWeb => kIsWeb || isMobileDevice;
bool get isDesktopDeviceOrWeb => kIsWeb || isDesktopDevice;