refactor(demo): fix typing to new name

Author: christianalfoni

packages/demos/react-typescript-todomvc/src/app/operations.ts

@@ -5,5 +5,5 @@ type ChangeEvent = React.ChangeEvent<HTMLInputElement>
 export const getEventValue: Operation.Map<ChangeEvent, string> = (_, event) =>
   event.currentTarget.value
 
-export const preventEventDefault: Operation.Do<React.FormEvent> = (_, event) =>
+export const preventEventDefault: Operation.Run<React.FormEvent> = (_, event) =>
   event.preventDefault()