Use underscore

Author: stefonarch

org.lxqt-project.Qps.desktop.in renamed to org.lxqt_project.Qps.desktop.in

@@ -57,7 +57,7 @@ qt5_translation_loader(
 )
 
 lxqt_translate_desktop(DESKTOP_FILES
-    SOURCES "${CMAKE_SOURCE_DIR}/org.lxqt-project.Qps.desktop.in"
+    SOURCES "${CMAKE_SOURCE_DIR}/org.lxqt_project.Qps.desktop.in"
     USE_YAML
 )
 #-----------------------------------------------------------------------------