parseDimensions static method
Parse size string to dimensions
Implementation
static ImageDimensions? parseDimensions(String size) {
final parts = size.split('x');
if (parts.length != 2) return null;
final width = int.tryParse(parts[0]);
final height = int.tryParse(parts[1]);
if (width == null || height == null) return null;
return ImageDimensions(width: width, height: height);
}