fix: Camera ignore turn flash off exception

[g123k]

Hi everyone,

When the preview is paused, I force the flash to be turned off.
But if the native part is quicker than the Dart side (camera closed for example), it will trigger an exception.

Instead, we just ignore the error

I/Camera  (12140): open | onClosed
I/Camera  (12140): CameraCaptureSession onClosed
I/Camera  (12140): refreshPreviewCaptureSession: captureSession not yet initialized, skipping preview capture session refresh.
E/flutter (12140): [ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled Exception: CameraException(setFlashModeFailed, Could not set flash mode.)
E/flutter (12140): #0      CameraController.setFlashMode (package:camera/src/camera_controller.dart:642:7)
E/flutter (12140): <asynchronous suspension>
E/flutter (12140): #1      SmoothCameraController.pausePreview (package:smooth_app/pages/scan/camera_controller.dart:83:7)
E/flutter (12140): <asynchronous suspension>
E/flutter (12140): #2      MLKitScannerPageState._stopImageStream (package:smooth_app/pages/scan/ml_kit_scan_page.dart:365:5)
E/flutter (12140): <asynchronous suspension>
E/flutter (12140): 

[codecov-commenter]

Codecov Report

Merging #2228 (9f41e14) into develop (2ea0da3) will decrease coverage by 1.06%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           develop   #2228      +/-   ##
==========================================
- Coverage     8.86%   7.79%   -1.07%     
==========================================
  Files          161     181      +20     
  Lines         6623    9028    +2405     
==========================================
+ Hits           587     704     +117     
- Misses        6036    8324    +2288     

Impacted Files	Coverage Δ
...kages/smooth_app/lib/widgets/attribute_button.dart	0.00% <0.00%> (-92.00%)	⬇️
packages/smooth_app/lib/themes/smooth_theme.dart	60.00% <0.00%> (-22.98%)	⬇️
...s/smooth_app/lib/data_models/user_preferences.dart	9.37% <0.00%> (-22.94%)	⬇️
...p/lib/generic_lib/dialogs/smooth_alert_dialog.dart	19.23% <0.00%> (-14.98%)	⬇️
...mooth_app/lib/data_models/product_preferences.dart	26.47% <0.00%> (-4.96%)	⬇️
.../smooth_app/lib/pages/onboarding/welcome_page.dart	0.00% <0.00%> (-3.13%)	⬇️
.../smooth_app/lib/pages/onboarding/scan_example.dart	0.00% <0.00%> (-2.28%)	⬇️
packages/smooth_app/lib/main.dart	15.74% <0.00%> (-2.16%)	⬇️
...s/smooth_app/lib/pages/onboarding/next_button.dart	2.22% <0.00%> (-1.78%)	⬇️
...p/lib/pages/onboarding/consent_analytics_page.dart	0.00% <0.00%> (-1.57%)	⬇️
... and 168 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 8a21076...9f41e14. Read the comment docs.

[M123-dev]

One comment, besides that it looks good

[M123-dev]

I don't feel comfortable doing this already. I often times have to put the barcode in at least some parts behind the card/lower then the middel

[g123k]

Please do a flutter upgrade to get my latest changes to the camera.
And you will notice that focus & detection are far better now