Adapt to the new inherited variant

CMakeLists.txt

io.github.NhekoReborn.Nheko.yaml

src/Cache.cpp

src/Cache_p.h

src/ChatPage.cpp

src/EventAccessors.cpp

src/Utils.cpp

src/Utils.h

src/encryption/Olm.cpp

src/timeline/EventStore.cpp

src/timeline/EventStore.h

src/timeline/InputBar.cpp

src/timeline/TimelineModel.cpp

src/timeline/TimelineModel.h

src/timeline/TimelineViewManager.cpp

src/timeline/TimelineViewManager.h