feat: prices - barcode reader for additional products

[monsieurtanuki]

What

• Now we can scan a barcode when adding a product to prices.

Screenshots

barcode search: new button	new barcode reader page

product found	product added

Files

New file:

• price_scan_page.dart: Page showing the camera feed and decoding the first barcode, for Prices.

Impacted files:

• app_en.arb: added 1 "barcode reader" label
• app_fr.arb: added 1 "barcode reader" label
• camera_scan_page.dart: minor refactoring
• price_product_search_page.dart: added a FAB towards the new barcode reader page

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 1.78571% with 55 lines in your changes missing coverage. Please review.

Project coverage is 7.37%. Comparing base (4d9c7fc) to head (5c05c38).
Report is 191 commits behind head on develop.

Files	Patch %	Lines
...pp/lib/pages/prices/price_product_search_page.dart	0.00%	32 Missing ⚠️
...s/smooth_app/lib/pages/prices/price_scan_page.dart	5.88%	16 Missing ⚠️
...es/smooth_app/lib/pages/scan/camera_scan_page.dart	0.00%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           develop   #5381      +/-   ##
==========================================
- Coverage     9.54%   7.37%   -2.18%     
==========================================
  Files          325     385      +60     
  Lines        16411   19667    +3256     
==========================================
- Hits          1567    1450     -117     
- Misses       14844   18217    +3373     

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[teolemon]

When I tried the initial support yesterday, I tried to click on the little barcode. Will it work ? Not sure a bottom right fab will be the most intuitive

[monsieurtanuki]

When I tried the initial support yesterday, I tried to click on the little barcode. Will it work ? Not sure a bottom right fab will be the most intuitive

The point of the little barcode is to say that it's a barcode input, not a text input.
For the record, according to Material specs, "A floating action button (FAB) performs the primary, or most common, action on a screen.", which seems appropriate to me in this case.
Would you prefer no FAB, an icon button and then the text field without image (on the same row)?

[teolemon]

I would have also made the little barcode clickable but I can survive.

[monsieurtanuki]

Thank you @teolemon for your review and feedbacks!

Anyway now that the barcode reader feature is there, we may change the UI/UX when needed.