Gerbview: fix a link issue (symbol not found) on MINGW/MSYS2

It was due to a link order with libgerbview_navlib

gerbview/CMakeLists.txt

@@ -138,9 +138,6 @@ target_link_libraries( gerbview_kiface_objects
 
 message( STATUS "Including 3Dconnexion SpaceMouse navigation support in gerbview" )
 add_subdirectory( navlib )
-
-target_link_libraries( gerbview_kiface_objects PUBLIC gerbview_navlib)
-
 add_dependencies( gerbview_kiface_objects gerbview_navlib )
 
 # the main gerbview program, in DSO form.
@@ -162,6 +159,8 @@ target_link_libraries( gerbview_kiface
         ${wxWidgets_LIBRARIES}
     )
 
+target_link_libraries( gerbview_kiface PUBLIC gerbview_navlib)
+
 set_source_files_properties( gerbview.cpp PROPERTIES
     # The KIFACE is in gerbview.cpp, export it:
     COMPILE_DEFINITIONS     "BUILD_KIWAY_DLL;COMPILING_DLL"