Merge remote-tracking branch 'origin/hotfix/usage-after-dispose' into hotfix/usage-after-dispose

# Conflicts:
#	lib/src/mobile_scanner.dart

@@ -22,7 +22,10 @@ class ScannerErrorWidget extends StatelessWidget {
               error.errorCode.message,
               style: const TextStyle(color: Colors.white),
             ),
-            if (error.errorDetails != null) Text(
+            if (error.errorDetails?.message case final String message) Text(
+              message,
+              style: const TextStyle(color: Colors.white),
+            ),            
               error.errorDetails!.message ?? '',
               style: const TextStyle(color: Colors.white),
             ),

@@ -83,7 +83,7 @@ class MethodChannelMobileScanner extends MobileScannerPlatform {
     throw MobileScannerException(
       errorCode: MobileScannerErrorCode.unsupported,
       errorDetails: MobileScannerErrorDetails(
-        message:MobileScannerErrorCode.unsupported.message,
+        message: MobileScannerErrorCode.unsupported.message,
       ),
     );
   }

@@ -302,7 +302,7 @@ class _MobileScannerState extends State<MobileScanner>
   void initState() {
     super.initState();
     controller = widget.controller ?? MobileScannerController();
-    initMobileScanner();
+    unawaited(initMobileScanner());
   }
 
   @override

@@ -24,7 +24,10 @@ class ScannerErrorWidget extends StatelessWidget {
               error.errorCode.message,
               style: const TextStyle(color: Colors.white),
             ),
-            if (error.errorDetails != null) Text(
+            if (error.errorDetails?.message case final String message) Text(
+              message,
+              style: const TextStyle(color: Colors.white),
+            ),
               error.errorDetails!.message ?? '',
               style: const TextStyle(color: Colors.white),
             ),