Remove ReadOnlySignal (#4552)

* Remove ReadOnlySignal

* Add back ReadOnlySignal as deprecated

packages/core-macro/src/props/mod.rs

@@ -509,7 +509,7 @@ fn type_from_inside_option(ty: &Type) -> Option<&Type> {
 
     // If the segment is a supported optional type, provide the inner type.
     // Return the inner type if the pattern is `Option<T>` or `ReadSignal<Option<T>>``
-    if seg.ident == "ReadOnlySignal" || seg.ident == "ReadSignal" {
+    if seg.ident == "ReadSignal" || seg.ident == "ReadOnlySignal" {
         // Get the inner type. E.g. the `u16` in `ReadSignal<u16>` or `Option` in `ReadSignal<Option<bool>>`
         let inner_type = extract_inner_type_from_segment(seg)?;
         let Type::Path(inner_path) = inner_type else {