We can use the List actions (ListAppend, ListAny, etc) inside Server Actions that are marked as a function.
However, this isn't the case for Client Actions. Right now we have, for example, to implement or own ListAppend in Javascript, if we want to keep the action as a function.
With this idea implemented, the List actions would have the same behavior for Server and Client actions, allowing us to use them inside Client Actions marked as functions.
