feat: When an image is unavailable -> find in another language

[g123k]

HI everyone!

The same as #6293, but for the product's main picture:

• User language
• Default language
• Fallback URL
• (NEW) English
• (NEW) Any other translation

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 14 lines in your changes missing coverage. Please review.

Project coverage is 5.95%. Comparing base (4d9c7fc) to head (003128c).
Report is 711 commits behind head on develop.

Files with missing lines	Patch %	Lines
.../lib/cards/product_cards/smooth_product_image.dart	0.00%	14 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           develop   #6297      +/-   ##
==========================================
- Coverage     9.54%   5.95%   -3.59%     
==========================================
  Files          325     472     +147     
  Lines        16411   27956   +11545     
==========================================
+ Hits          1567    1666      +99     
- Misses       14844   26290   +11446     

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