Package: Fix nautilus plugin name collision when branded

As suggested by @olifre in #5183

shell_integration/nautilus/CMakeLists.txt

@@ -19,8 +19,8 @@ if( UNIX AND NOT APPLE )
                     ERROR_VARIABLE errors OUTPUT_VARIABLE out)
 
                                         
-    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/syncstate.py DESTINATION ${DATADIR}/nautilus-python/extensions)
-    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/syncstate_nemo.py DESTINATION ${DATADIR}/nemo-python/extensions RENAME syncstate.py)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/syncstate.py DESTINATION ${DATADIR}/nautilus-python/extensions RENAME syncstate-${APPLICATION_SHORTNAME}.py)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/syncstate_nemo.py DESTINATION ${DATADIR}/nemo-python/extensions RENAME syncstate-${APPLICATION_SHORTNAME}.py)