The root already set CMAKE_AUTOMOC; add CMAKE_AUTOUIC and CMAKE_AUTORCC
next to it and drop the per-directory copies from 18 CMakeLists files.
These variables are inherited by the subdirectories, so the duplicates
never changed anything.
qt_standard_project_setup is not used: besides the AUTO* variables it
sets CMAKE_RUNTIME_OUTPUT_DIRECTORY on Windows, which breaks the
install(DIRECTORY "$<TARGET_FILE_DIR:...>") copies and the per-app
symbol paths, and appends to CMAKE_INSTALL_RPATH on Linux.
Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>