corrected spelling issues

trigger.py

@@ -11,7 +11,7 @@ class Trigger(AppClass):
     def name(self) -> str:
         if self.__module__ == 'trigger':
             raise TriggerImportError(
-                "the Trigger class can't used directlty, but must be inhereted in a trigger specific class"
+                "the Trigger class can't used directly, but must be inherited in a trigger specific class"
             )
         _ , _name =  self.__module__.split('.')
         return _name