🐛 Signal&ddeSignal type

- in elements use ddSignal for better compatibility with ponetially another implementation
- fixed incorrect detection of `S(()=> any)` and `S(non-function, any)`

signals.d.ts

@@ -6,6 +6,10 @@ type Actions<V>= Record<string | SymbolOnclear, Action<V>>;
 type OnListenerOptions= Pick<AddEventListenerOptions, "signal"> & { first_time?: boolean };
 interface signal{
 	_: Symbol
+	/**
+	 * Computations signal. This creates a signal which is computed from other signals.
+	 * */
+	<V extends ()=> any>(computation: V): Signal<ReturnType<V>, {}>
 	/**
 	 * Simple example:
 	 * ```js
@@ -31,10 +35,6 @@ interface signal{
 	 *		by `S.clear`.
 	 * */
 	<V, A extends Actions<V>>(value: V, actions?: A): Signal<V, A>;
-	/**
-	 * Computations signal. This creates a signal which is computed from other signals.
-	 * */
-	<V>(computation: ()=> V): Signal<V, {}>
 	action<S extends Signal<any, Actions<any>>, A extends (S extends Signal<any, infer A> ? A : never), N extends keyof A>(
 		signal: S,
 		name: N,