misc: remove LRC singleton

CMakeLists.txt

jami-qt.pro

src/abstractitemmodelbase.h

src/accountadapter.cpp

src/accountadapter.h

src/accountlistmodel.cpp

src/accountlistmodel.h

src/accountstomigratelistmodel.cpp

src/accountstomigratelistmodel.h

src/audiodevicemodel.cpp

src/audiodevicemodel.h

src/audiomanagerlistmodel.cpp

src/audiomanagerlistmodel.h

src/avadapter.cpp

src/avadapter.h

src/avatarimageprovider.h

src/bannedlistmodel.cpp

src/bannedlistmodel.h

src/calladapter.cpp

src/calladapter.h