feat: mock providers

[simaopsbarbosa]

added mock providers for user schedule and exams so we can develop ui's and test certain features, even when we ourselves dont have lectures or exams. this simplifies the development process: instead of generating and hard-coding the data on the page itself, now we can simply call flutter run with certain flags to override the riverpod provider with realistic data. this adds the data in provider scope and not in page scope. this would've been useful, for example, in #1715 and is now very useful in #1810, both for developers and reviewers.

also makes it very simple to edit and test out different edge cases in schedule / exam related features

mock schedule

flutter run --dart-define=MOCK_SCHEDULE=true

mock exams

flutter run --dart-define=MOCK_EXAMS=true

mock both

flutter run --dart-define=MOCK_SCHEDULE=true --dart-define=MOCK_EXAMS=true

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 6%. Comparing base (012b906) to head (717ecf3).
⚠️ Report is 10 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff           @@
##           develop   #1877   +/-   ##
=======================================
  Coverage        6%      6%           
=======================================
  Files           38      38           
  Lines         2148    2148           
=======================================
  Hits           125     125           
  Misses        2023    2023           

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[goncalopinto1]

AMAZING FEATURE 🤩

[pedroafmonteiro]

Good idea, looks awesome! LGTM 🚀
Would be good to update our wiki with this information too!