feat: 5352 - now opening the related product price page from count button

[monsieurtanuki]

What

• Now the "price count" button opens the related product price page.
• Unless you're already on the single product price page.

Screenshots

latest prices page	product price page

Fixes bug(s)

• Closes: Jumping from the "Last added prices" and "My Prices" to the individual price page for the product #5352

Impacted files

• edit_product_page.dart: minor refactoring
• get_prices_model.dart: refactored with 2 new constructors
• price_count_widget.dart: now opening the related product price page (if relevant)
• price_product_widget.dart: minor refactoring
• prices_card.dart: minor refactoring
• product_price_add_page.dart: minor refactoring
• product_prices_list.dart: minor refactoring; minor bug fix
• user_preferences_account.dart: minor refactoring

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 70 lines in your changes missing coverage. Please review.

Project coverage is 7.40%. Comparing base (4d9c7fc) to head (151a8bb).
Report is 175 commits behind head on develop.

Files	Patch %	Lines
.../smooth_app/lib/pages/prices/get_prices_model.dart	0.00%	23 Missing ⚠️
...mooth_app/lib/pages/prices/price_count_widget.dart	0.00%	17 Missing ⚠️
...h_app/lib/pages/prices/product_price_add_page.dart	0.00%	11 Missing ⚠️
...ooth_app/lib/pages/prices/product_prices_list.dart	0.00%	7 Missing ⚠️
...ib/pages/preferences/user_preferences_account.dart	0.00%	4 Missing ⚠️
...oth_app/lib/pages/prices/price_product_widget.dart	0.00%	4 Missing ⚠️
...kages/smooth_app/lib/pages/prices/prices_card.dart	0.00%	3 Missing ⚠️
...mooth_app/lib/pages/product/edit_product_page.dart	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           develop   #5353      +/-   ##
==========================================
- Coverage     9.54%   7.40%   -2.14%     
==========================================
  Files          325     380      +55     
  Lines        16411   19423    +3012     
==========================================
- Hits          1567    1439     -128     
- Misses       14844   17984    +3140     

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[teolemon]

Thanks @monsieurtanuki :-)