fix: 5830 - sorted "more photos" by timestamp

[monsieurtanuki]

What

• Now "more photos" are sorted by descending timestamps, instead of descending ids.

Screenshots

before	after

Fixes bug(s)

• Closes: "More interesting photos" are not sorted by date #5830

Impacted file

• product_cards_helper.dart: sorted "more photos" by timestamp

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 9 lines in your changes missing coverage. Please review.

Project coverage is 6.92%. Comparing base (4d9c7fc) to head (6cd9490).
Report is 469 commits behind head on develop.

Files with missing lines	Patch %	Lines
...s/smooth_app/lib/helpers/product_cards_helper.dart	0.00%	9 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           develop   #5843      +/-   ##
==========================================
- Coverage     9.54%   6.92%   -2.63%     
==========================================
  Files          325     422      +97     
  Lines        16411   23249    +6838     
==========================================
+ Hits          1567    1609      +42     
- Misses       14844   21640    +6796     

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[g123k]

👌

[monsieurtanuki]

Thank you @g123k for your review!