docs(flutter_bloc): update example to follow naming conventions

[felangel]

Status

READY

Breaking Changes

NO

Description

• docs(flutter_bloc): update example to follow naming conventions

Type of Change

• ✨ New feature (non-breaking change which adds functionality)
• 🛠️ Bug fix (non-breaking change which fixes an issue)
• ❌ Breaking change (fix or feature that would cause existing functionality to change)
• 🧹 Code refactor
• ✅ Build configuration change
• 📝 Documentation
• 🗑️ Chore

[codecov]

Codecov Report

Merging #3027 (d1b0f75) into master (f299751) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master     #3027   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            8         9    +1     
  Lines          184       176    -8     
=========================================
- Hits           184       176    -8     

Impacted Files	Coverage Δ
packages/bloc/lib/src/bloc_observer.dart
packages/bloc/lib/src/emitter.dart
packages/bloc/lib/src/change.dart
packages/bloc/lib/src/bloc_base.dart
packages/bloc/lib/src/cubit.dart
packages/bloc/lib/src/bloc_overrides.dart
packages/bloc/lib/src/bloc.dart
packages/bloc/lib/src/transition.dart
...lutter_bloc/lib/src/multi_repository_provider.dart	100.00% <0.00%> (ø)
...ages/flutter_bloc/lib/src/multi_bloc_listener.dart	100.00% <0.00%> (ø)
... and 7 more

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