Product page improvements

[PrimaelQuemerais]

What

This PR addresses a handful of bugs and introduces some improvements to the product page following the integration of tabs.

Do not merge yet, this contains some sort in progress and I intend to add more fixes from the epic.

• Incorrect tab bar colors are displayed in dark mode.
• Header shows unexpected rounded corners in dark mode.
• Pull to refresh doesn't work anymore with tabs #6670
• Put the number of prices and folksonomy entries in the tabs ? #6664
• The "report a problem" tab is broken #6662

Screenshot

Part of

#6680

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 1.04167% with 95 lines in your changes missing coverage. Please review.

Project coverage is 5.36%. Comparing base (4d9c7fc) to head (0996cb3).
Report is 964 commits behind head on develop.

Files with missing lines	Patch %	Lines
...b/pages/product/product_page/new_product_page.dart	0.00%	36 Missing ⚠️
...duct/product_page/product_page_tab_controller.dart	0.00%	28 Missing ⚠️
...product/product_page/header/product_page_tabs.dart	3.57%	27 Missing ⚠️
...ges/smooth_app/lib/pages/product/summary_card.dart	0.00%	4 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##           develop    #6789       +/-   ##
============================================
- Coverage     9.54%    5.36%    -4.19%     
============================================
  Files          325      643      +318     
  Lines        16411   218735   +202324     
============================================
+ Hits          1567    11729    +10162     
- Misses       14844   207006   +192162     

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[g123k]

For the TabBar, I've fixed it in #6791

[PrimaelQuemerais]

Thanks @g123k I'll remove my fix from here