Fix: emit edited signal after pasting from clipboard in Vector3 property

When pasting from clipboard into the position property in the SoundEvent
editor, on_property_update() was never called, so the edited signal was
never emitted and the data was not saved to the file/element.

Author: dertwist

src/editors/soundevent_editor/property/common.py

@@ -282,6 +282,7 @@ def paste_from_clipboard(self):
                     if index < len(self.float_widget_instances):
                         widget_instance: FloatWidget = self.float_widget_instances[index]
                         widget_instance.set_value(value)
+        self.on_property_update()
 
     def on_property_update(self):
         """Send signal that user changed the property"""