feat: A feedback form for the prices page

[g123k]

Redirects to https://forms.gle/Vmh9SR3HhPpjMnVF7

• Screenshot:

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 2.70270% with 36 lines in your changes missing coverage. Please review.

Project coverage is 7.18%. Comparing base (4d9c7fc) to head (008b3dc). Report is 228 commits behind head on develop.

Files	Patch %	Lines
...kages/smooth_app/lib/pages/prices/prices_page.dart	3.33%	29 Missing :warning:
.../lib/data_models/preferences/user_preferences.dart	0.00%	5 Missing :warning:
...kages/smooth_app/lib/pages/prices/prices_card.dart	0.00%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #5442 +/- ## ========================================== - Coverage 9.54% 7.18% -2.37% ========================================== Files 325 391 +66 Lines 16411 20380 +3969 ========================================== - Hits 1567 1464 -103 - Misses 14844 18916 +4072 ```

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