Fix class finding query template

data/palette/find_class_property.toml

@@ -29,10 +29,10 @@ SELECT DISTINCT ?class WHERE {
   ?subject a ?class .
 }
 '''
-description = "Find all the properties for a class."
+description = "Find all the classes using a property."
 visual_support = true
 
 [[replacements]]
-placeholder = "class"
-suggestion  = "base:ArtifactType"
-description = "For which class do you want to find properties?"
+placeholder = "Property"
+suggestion  = "base:hasName"
+description = "Which property do the classes need to have?"