client-windows: remove std::string to adapt new lrc

src/accountlistmodel.cpp

src/accountmigrationdialog.cpp

src/accountmigrationdialog.h

src/advancedsettingswidget.cpp

src/advancedsipsettingwidget.cpp

src/advancedsipsettingwidget.h

src/callaudioonlyavataroverlay.cpp

src/callwidget.cpp

src/callwidget.h

src/contactpicker.cpp

src/contactpicker.h

src/conversationitemdelegate.cpp

src/currentaccountcombobox.cpp

src/currentaccountcombobox.h

src/deleteaccountdialog.cpp

src/deviceitemwidget.cpp

src/distantwidget.cpp

src/distantwidget.h

src/linkdevicedialog.cpp

src/linkdevicedialog.h