[docs] Update form options

Author: x0k

apps/docs2/src/content/docs/form/options.mdx

@@ -19,10 +19,6 @@ export type UiOptionsRegistryOption = keyof UiOptionsRegistry extends never
       [UI_OPTIONS_REGISTRY_KEY]: UiOptionsRegistry;
     };
 
-export interface ValueRef<T> {
-  current: T;
-}
-
 export interface FormOptions<T, V extends Validator>
   extends UiOptionsRegistryOption {
   validator: V;
@@ -49,7 +45,7 @@ export interface FormOptions<T, V extends Validator>
    */
   idPseudoSeparator?: string;
   //
-  value?: [() => T, (v: T) => void];
+  value?: Lens<T>;
   initialValue?: InitialValue<T>;
   initialErrors?: InitialErrors<V>;
   /**