Hints backend (#234)

* Generate hints from list of actions

* Remove redundant Key from output

* Improve formatting

* Change logging verbosity for hints

core/editor/src/communication/dispatcher.rs

@@ -33,6 +33,7 @@ impl Dispatcher {
 		) || MessageDiscriminant::from(&message).local_name().ends_with("MouseMove"))
 		{
 			log::trace!("Message: {}", message.to_discriminant().local_name());
+			log::trace!("Hints:{}", self.input_mapper.hints(self.collect_actions()));
 		}
 		match message {
 			NoOp => (),