feat: Added Robotoff nutrition extraction to nutrition edit page

[PrimaelQuemerais]

What

Users can now get nutrition edit suggestions from Robotoff

After doing some tests with popular products we usually get between 2 and 3 suggestions per product.

Screenshot

Screen.Recording.2025-02-09.at.4.41.37.PM.mov

Part of

#4896

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 190 lines in your changes missing coverage. Please review.

Project coverage is 5.84%. Comparing base (4d9c7fc) to head (53b6305).
Report is 778 commits behind head on develop.

Files with missing lines	Patch %	Lines
...nutrition_page/widgets/nutrition_facts_editor.dart	0.00%	54 Missing ⚠️
...b/pages/product/nutrition_page/nutrition_page.dart	0.00%	45 Missing ⚠️
...mooth_app/lib/generic_lib/widgets/smooth_card.dart	0.00%	40 Missing ⚠️
...ition_page/widgets/nutrition_container_helper.dart	0.00%	20 Missing ⚠️
...pp/lib/generic_lib/widgets/smooth_sliver_card.dart	0.00%	17 Missing ⚠️
...kages/smooth_app/lib/helpers/analytics_helper.dart	0.00%	7 Missing ⚠️
...ckages/smooth_app/lib/widgets/smooth_dropdown.dart	0.00%	6 Missing ⚠️
...trition_page/widgets/nutrition_serving_switch.dart	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           develop   #6366      +/-   ##
==========================================
- Coverage     9.54%   5.84%   -3.71%     
==========================================
  Files          325     490     +165     
  Lines        16411   29249   +12838     
==========================================
+ Hits          1567    1710     +143     
- Misses       14844   27539   +12695     

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[teolemon]

@PrimaelQuemerais Have you tackled the behaviour with no values at all, or some values ? If so can you make another short video of it ?

[PrimaelQuemerais]

Here's what it looks like with all fields empty

Screen.Recording.2025-02-10.at.11.29.52.AM.mov

[teolemon]

@PrimaelQuemerais small conflict to solve

[PrimaelQuemerais]

Reworked interface :

Screen.Recording.2025-02-15.at.11.38.53.AM.mov

[PrimaelQuemerais]

I've added analytics for the number of new suggestions Robotoff is able to find, however I'm not sure how to track the number of accepted suggestions as AnalyticsHelp.trackEvent() only accepts an integer as eventValue.

Is it okay to only track the number of accepted suggestions regardless of the number of suggestions for a specific product? Or do we need to keep count of : accepted / suggested ?

[teolemon]

We have various ways to monitor efficiency of nutrition extraction.

I'm not sure what @raphael0202 would need from the client if anything.
In doubt, I'd be tempted to apply the old saying, when in doubt, log everything, that is to say nutrient name/barcode/accepted-rejected status.
But we also have to bear in mind that Server side can look at ground truth to see what happened of the prediction, and replay the extraction on problematic cases, so a proxy might be enough.

[PrimaelQuemerais]

I changed the analytics to send an event for each nutrient extracted and each insight accepted.
I'm not fully understanding how Matomo should be used, are we able to log custom values? Say for example we want to track the value with which an insight was rejected how should this information be passed?

[teolemon]

A ground breaking change, even if we leave out Matomo for the time being.

[teolemon]

little merge conflict regarding app_en.arb indentation @PrimaelQuemerais
After that I suggest we merge and iterate @PrimaelQuemerais @g123k