refactor: Replace all Snackbar by SmoothFloatingSnackbar

[g123k]

It will force this view:

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 22 lines in your changes missing coverage. Please review.

Project coverage is 6.33%. Comparing base (4d9c7fc) to head (34c8976).
Report is 630 commits behind head on develop.

Files with missing lines	Patch %	Lines
...h_app/lib/generic_lib/widgets/smooth_snackbar.dart	0.00%	6 Missing ⚠️
...pp/lib/pages/product/common/product_list_page.dart	0.00%	5 Missing ⚠️
...h_app/lib/pages/product/nutrition_page_loaded.dart	0.00%	3 Missing ⚠️
...mooth_app/lib/pages/personalized_ranking_page.dart	0.00%	2 Missing ⚠️
...pp/lib/pages/product/common/product_refresher.dart	0.00%	2 Missing ⚠️
...ckages/smooth_app/lib/pages/offline_data_page.dart	0.00%	1 Missing ⚠️
...ib/pages/preferences/user_preferences_rate_us.dart	0.00%	1 Missing ⚠️
.../product/common/product_list_item_popup_items.dart	0.00%	1 Missing ⚠️
...ooth_app/lib/pages/search/search_history_view.dart	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           develop   #6169      +/-   ##
==========================================
- Coverage     9.54%   6.33%   -3.22%     
==========================================
  Files          325     451     +126     
  Lines        16411   25960    +9549     
==========================================
+ Hits          1567    1644      +77     
- Misses       14844   24316    +9472     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[monsieurtanuki]

Hi @g123k!
LGTM