Merge branch '65-normalize-game-architecture' into 'master'

lib/models/data/counts_by_hour.dart

lib/models/data/discoveries.dart

lib/models/data/heatmap.dart

lib/models/data/new_artists.dart

lib/models/data/new_tracks.dart

lib/models/data/statistics_global.dart

lib/models/data/statistics_recent.dart

lib/models/data/timeline.dart

lib/models/data/topartists.dart

lib/models/data/track.dart

lib/network/scrobbles.dart

lib/ui/helpers/app_titles.dart

lib/ui/nav/bottom_nav_bar.dart

lib/ui/nav/global_app_bar.dart

lib/ui/pages/discoveries.dart

lib/ui/pages/home.dart

lib/ui/pages/statistics.dart

lib/ui/screens/about.dart

lib/ui/screens/activity.dart

lib/ui/screens/discoveries.dart