export mobile scanner exception & error code; fix typo

@@ -2,11 +2,13 @@ library mobile_scanner;
 
 export 'src/enums/camera_facing.dart';
 export 'src/enums/detection_speed.dart';
+export 'src/enums/mobile_scanner_error_code.dart';
 export 'src/enums/mobile_scanner_state.dart';
 export 'src/enums/ratio.dart';
 export 'src/enums/torch_state.dart';
 export 'src/mobile_scanner.dart';
 export 'src/mobile_scanner_controller.dart';
+export 'src/mobile_scanner_exception.dart';
 export 'src/objects/barcode.dart';
 export 'src/objects/barcode_capture.dart';
 export 'src/objects/mobile_scanner_arguments.dart';

@@ -2,7 +2,7 @@
 enum MobileScannerErrorCode {
   /// The controller was used
   /// while it was not yet initialized using [MobileScannerController.start].
-  controllerUnititialized,
+  controllerUninitialized,
 
   /// A generic error occurred.
   ///

@@ -6,8 +6,6 @@ import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
 import 'package:mobile_scanner/mobile_scanner.dart';
 import 'package:mobile_scanner/src/barcode_utility.dart';
-import 'package:mobile_scanner/src/enums/mobile_scanner_error_code.dart';
-import 'package:mobile_scanner/src/mobile_scanner_exception.dart';
 
 /// The [MobileScannerController] holds all the logic of this plugin,
 /// where as the [MobileScanner] class is the frontend of this plugin.
@@ -235,7 +233,7 @@ class MobileScannerController {
 
     if (hasTorch == null) {
       throw const MobileScannerException(
-        errorCode: MobileScannerErrorCode.controllerUnititialized,
+        errorCode: MobileScannerErrorCode.controllerUninitialized,
       );
     } else if (!hasTorch) {
       return;