feat: Autopause camera after 1 min of inactivity

[g123k]

Demo (with a timeout of 5 seconds):

flash.mp4

Will fix #2199

[codecov-commenter]

Codecov Report

Merging #2229 (011afd1) into develop (2ea0da3) will decrease coverage by 1.13%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           develop   #2229      +/-   ##
==========================================
- Coverage     8.86%   7.72%   -1.14%     
==========================================
  Files          161     181      +20     
  Lines         6623    9098    +2475     
==========================================
+ Hits           587     703     +116     
- Misses        6036    8395    +2359     

Impacted Files	Coverage Δ
...kages/smooth_app/lib/widgets/attribute_button.dart	0.00% <0.00%> (-92.00%)	⬇️
packages/smooth_app/lib/themes/smooth_theme.dart	60.00% <0.00%> (-22.98%)	⬇️
...s/smooth_app/lib/data_models/user_preferences.dart	9.37% <0.00%> (-22.94%)	⬇️
...p/lib/generic_lib/dialogs/smooth_alert_dialog.dart	19.23% <0.00%> (-14.98%)	⬇️
...mooth_app/lib/data_models/product_preferences.dart	26.47% <0.00%> (-4.96%)	⬇️
.../smooth_app/lib/pages/onboarding/welcome_page.dart	0.00% <0.00%> (-3.13%)	⬇️
.../smooth_app/lib/pages/onboarding/scan_example.dart	0.00% <0.00%> (-2.28%)	⬇️
packages/smooth_app/lib/main.dart	15.74% <0.00%> (-2.16%)	⬇️
...s/smooth_app/lib/pages/onboarding/next_button.dart	2.22% <0.00%> (-1.78%)	⬇️
...p/lib/pages/onboarding/consent_analytics_page.dart	0.00% <0.00%> (-1.57%)	⬇️
... and 168 more

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[teolemon]

"To save energy"

[M123-dev]

Normally I would assume that the timer restarts when I scan a product, but that's not a blocking thing. This feature addition is great

[g123k]

And… implemented :)

• editing the Dialog content

[VaiTon]

Good work @g123k ! 🎉