New context with albums and lyrics +++ much more

* Added new lyrics provider with lyrics from AudD and API Seeds
* New improved context widget with albums and lyrics
* Fixed playing and context widget getting stuck in play mode when there was an error
* Changed icons for artists in collection, tidal and cover manager
* Removed "search" icon from "Search automatically" checkbox (right click) that looked ugly
* Removed some unused widgets from the src/widgets directory
* Fixed initial size of window and side panel
* Fixed saving window size correctly

src/collection/collection.cpp

@@ -57,7 +57,6 @@ SCollection::SCollection(Application *app, QObject *parent)
   backend_->Init(app->database(), kSongsTable, kDirsTable, kSubdirsTable, kFtsTable);
 
   model_ = new CollectionModel(backend_, app_, this);
- 
 
   ReloadSettings();