feat: prices - top contributors now within the app

[monsieurtanuki]

What

• We had to use the web app to list the top contributors.
• Now we do that within the app.
• Also added: the "contributor's prices" page.

Screenshots

top contributors button	top contributors page	contributor page

Fixes bug(s)

• Closes: Replicate the 'Top Contributors' view from the Open Prices web app #5210

Files

New files:

• price_user_button.dart: Widget that displays a user, for Prices.
• prices_users_page.dart: Page that displays the top prices users.

Impacted files:

• app_en.arb: added 2 label for "Contributor prices"
• app_fr.arb: added 2 label for "Contributor prices"
• price_count_widget.dart: minor refactoring
• price_data_widget.dart: minor refactoring using new class PriceUserButton
• user_preferences_account.dart: local display of top users; minor refactoring using new class PriceUserButton

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 1.02041% with 97 lines in your changes missing coverage. Please review.

Project coverage is 7.33%. Comparing base (4d9c7fc) to head (c164d72).
Report is 196 commits behind head on develop.

Files	Patch %	Lines
...smooth_app/lib/pages/prices/prices_users_page.dart	1.75%	56 Missing ⚠️
...smooth_app/lib/pages/prices/price_user_button.dart	0.00%	24 Missing ⚠️
...ib/pages/preferences/user_preferences_account.dart	0.00%	10 Missing ⚠️
...mooth_app/lib/pages/prices/price_count_widget.dart	0.00%	6 Missing ⚠️
...smooth_app/lib/pages/prices/price_data_widget.dart	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           develop   #5383      +/-   ##
==========================================
- Coverage     9.54%   7.33%   -2.22%     
==========================================
  Files          325     388      +63     
  Lines        16411   19849    +3438     
==========================================
- Hits          1567    1455     -112     
- Misses       14844   18394    +3550     

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[teolemon]

@monsieurtanuki it might be nice adding a link to photographer, editor, contributor on the main project as well.
We also need to see if contributors are confortable with the increased visibility.

[monsieurtanuki]

it might be nice adding a link to photographer, editor, contributor on the main project as well.

Sure! Please create another issue for that.

We also need to see if contributors are confortable with the increased visibility.

Fair enough.
I coded in order to solve issue #5210, and the top contributor list was already available via the web app link.
Tell me if I have to remove (or hide) that feature.
For the record in the app we only display the top 10 contributors (because I considered the "next 10 contributors" was not a priority).

[teolemon]

I got feedback from Tacite telling me it was fine.
The idea of editor/photographer/contributor was to dilute geo price data into the wider contribution opportunity.
Let's keep it to 10, those are engaged contributors who know what they are doing, and the implications in terms of visibility.

[monsieurtanuki]

Thank you @teolemon for your review and your feedbacks!