fix double values for MacOS

@@ -52,8 +52,8 @@ class MobileScannerHandler(
                 "data" to barcodes,
                 "data" to barcodes,
                 "image" to mapOf(
                 "image" to mapOf(
                     "bytes" to image,
                     "bytes" to image,
-                    "width" to width!!.toDouble(),
-                    "height" to height!!.toDouble(),
+                    "width" to width?.toDouble(),
+                    "height" to height?.toDouble(),
                 )
                 )
             ))
             ))
         } else {
         } else {

@@ -165,8 +165,8 @@ public class MobileScannerPlugin: NSObject, FlutterPlugin, FlutterStreamHandler,
                                 "data": barcodes.map({ $0.toMap() }),
                                 "data": barcodes.map({ $0.toMap() }),
                                 "image": cgImage == nil ? nil : [
                                 "image": cgImage == nil ? nil : [
                                     "bytes": FlutterStandardTypedData(bytes: cgImage!.jpegData(compressionQuality: 0.8)!),
                                     "bytes": FlutterStandardTypedData(bytes: cgImage!.jpegData(compressionQuality: 0.8)!),
-                                    "width": cgImage!.width,
-                                    "height": cgImage!.height,
+                                    "width": Double(cgImage!.width),
+                                    "height": Double(cgImage!.height),
                                 ],
                                 ],
                             ])
                             ])
                         }
                         }