fixing property prefix

source/RobotAPI/libraries/armem_vision/client/occupancy_grid/Writer.cpp

@@ -55,7 +55,7 @@ namespace armarx::armem::vision::occupancy_grid::client
         return updateResult.success;
     }
 
-    std::string Writer::propertyPrefix() const { return "mem.vision."; }
+    std::string Writer::propertyPrefix() const { return "mem.vision.occupancy_grid."; }
 
     armarx::armem::client::util::SimpleWriterBase::SimpleWriterBase::Properties
     Writer::defaultProperties() const