message: ts: fix return type of handler
diff: @@ -311,5 +311,5 @@ export type NativeHandlersPartial = Partial<Omit<ReactDomAttributes, keyof UserH
  export type UserHandlersPartial = AtLeastOneOf<UserHandlers> & NativeHandlersPartial
  export type HookReturnType<T extends { domTarget?: DomTarget }> = T['domTarget'] extends object
  - ? Fn
  + ? void | undefined
  : ReactEventHandlers
  