Refactoring: seperation of consernce
- [x] Player controls *(Move player controls to its own component and use signals to implement logic)* - [x] Single RadioAPI component - [x] Breakout AudioPlayer in ui/code and own components where appropriated - [x] Refactor Favorites.qml ui/code/components - [x] Refactor Browse.qml ui/code/components - [x] Refactor BrowseByCategory.qml ui/code/components - [x] Refactor Stations.qml ui/code/components
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