Unsubscribe from survey updates after clearing user session

[andreia-ferreira]

Towards #3867

Similar to #3876, but this PR focuses on unsubscribing from firebase survey updates when a user logs out.

This also introduces a small refactor to move the ClearUserSessionUseCase to :core:domain. Its android specific dependencies needed to be removed, so a new method was introduced in the UserRepository to clear all user data, not only the shared preferences, but also the data stored in the Room database.

@shobhitagarwal1612 PTAL?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 68.79%. Comparing base (a831afb) to head (74aee2a).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #3888      +/-   ##
============================================
+ Coverage     68.69%   68.79%   +0.10%     
- Complexity     1926     1929       +3     
============================================
  Files           412      412              
  Lines         10968    10970       +2     
  Branches       1432     1432              
============================================
+ Hits           7534     7547      +13     
+ Misses         2686     2675      -11     
  Partials        748      748              

Files with missing lines	Coverage Δ
...roundplatform/android/repository/UserRepository.kt	83.05% <100.00%> (+1.91%)	⬆️
...rg/groundplatform/android/ui/main/MainViewModel.kt	65.57% <ø> (ø)
...rm/domain/usecases/user/ClearUserSessionUseCase.kt	100.00% <100.00%> (ø)

... and 2 files with indirect coverage changes

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