[ #7876 ] Clean includes

kde/src/SFLPhone.cpp

kde/src/SFLPhoneView.cpp

kde/src/lib/Account.cpp

kde/src/lib/CallModel.hpp

kde/src/lib/Contact.cpp

kde/src/widgets/AccountItemWidget.cpp

kde/src/widgets/CallTreeItem.cpp

kde/src/widgets/ContactDock.cpp

kde/src/widgets/ContactItemWidget.cpp

kde/src/widgets/HistoryDock.cpp

kde/src/widgets/HistoryTreeItem.cpp

kde/src/widgets/SFLPhoneTray.cpp