also, the CMake files are installed where they can be found by default
(without any manual configuration) by default - in the top-level
installation directory (CMAKE_INSTALL_PREFIX)
Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
that makes them overridable even from external projects (which can be bad
since it can make translations be installed in the wrong path) but for
those who build Katie itself it would be easier to change the paths from
the CMake GUI or their IDE
Signed-off-by: Ivailo Monev <xakepa10@gmail.com>