Disable KRUNNER/X11 on Haiku too
Also fixes the build because of:
[ 64%] Building CXX object src/CMakeFiles/neochat.dir/windowcontroller.cpp.o
/Opslag/patchUpstream/neochat/src/windowcontroller.cpp:11:10: fatal error: KStartupInfo: No such file or directory
11 | #include <KStartupInfo>
| ^~~~~~~~~~~~~~