fixed 'Not all code paths return a value.' error for godot 4.7

Author: da-pwo

addons/dialogic/Modules/Text/node_name_label.gd

@@ -23,3 +23,5 @@ func _set(property, what):
 		else:
 			name_label_root.show()
 		return true
+	else:
+		return false

addons/dialogic/Modules/Variable/subsystem_variables.gd

@@ -183,6 +183,8 @@ func _get(property):
 			return VariableFolder.new(var_storage[property], property, self)
 		else:
 			return DialogicUtil.logical_convert(var_storage[property])
+	else:
+		return null
 
 
 func folders() -> Array:
@@ -244,6 +246,8 @@ class VariableFolder:
 				return VariableFolder.new(data[property], path+"."+property, outside)
 			else:
 				return DialogicUtil.logical_convert(data[property])
+		else:
+			return null
 
 
 	func _set(property:StringName, value:Variant) -> bool: