Move musicus package to seperate directory

pubspec.yaml

@@ -1,35 +0,0 @@
-name: musicus
-version: 0.1.0
-description: The classical music player and organizer.
-author: Elias Projahn <johrpan@gmail.com>
-homepage: https://musicus.org
-repository: https://github.com/johrpan/musicus
-
-environment:
-  sdk: ">=2.3.0 <3.0.0"
-
-dependencies:
-  audio_service:
-  flutter:
-    sdk: flutter
-  moor:
-  moor_ffi:
-  path:
-  path_provider:
-  rxdart:
-  shared_preferences:
-
-dev_dependencies:
-  build_runner:
-  moor_generator:
-
-flutter:
-  uses-material-design: true
-  fonts:
-  - family: Libertinus Sans
-    fonts:
-    - asset: fonts/libertinussans_regular.otf
-    - asset: fonts/libertinussans_bold.otf
-      weight: 700
-    - asset: fonts/libertinussans_italic.otf
-      style: italic