SignalSetter in prelude

[duelafn]

Is your feature request related to a problem? Please describe.
It seems like SignalSetter wrapper type should be in the prelude just like the Signal wrapper type is.

The query_signal() signal generator requires it therefore, I generally take #[prop(into)] set_foo: SignalSetter<T>, in my components when I need a writer so am annoyed when I have to add the specific import below my use leptos::prelude::*;

Describe the solution you'd like
I'd like SignalSetter added to the prelude.

Describe alternatives you've considered
It seems that (from a quick search) query_signal() is the only signal generator that produces a SignalSetter, so it may be reasonable to leave SignalSetter out of the prelude as an uncommon type.