fix docs (#14635)

Author: Rich-Harris

documentation/docs/98-reference/.generated/shared-warnings.md

@@ -23,6 +23,6 @@ The following properties cannot be cloned with `$state.snapshot` — the return
 `$state.snapshot` tries to clone the given value in order to return a reference that no longer changes. Certain objects may not be cloneable, in which case the original value is returned. In the following example, `property` is cloned, but `window` is not, because DOM elements are uncloneable:
 
 ```js
-const state = $state({ property: 'this is cloneable', window })
-const snapshot = $state.snapshot();
+const object = $state({ property: 'this is cloneable', window })
+const snapshot = $state.snapshot(object);
 ```

packages/svelte/messages/shared-warnings/warnings.md

@@ -15,6 +15,6 @@ Elements such as `<input>` cannot have content, any children passed to these ele
 `$state.snapshot` tries to clone the given value in order to return a reference that no longer changes. Certain objects may not be cloneable, in which case the original value is returned. In the following example, `property` is cloned, but `window` is not, because DOM elements are uncloneable:
 
 ```js
-const state = $state({ property: 'this is cloneable', window })
-const snapshot = $state.snapshot();
+const object = $state({ property: 'this is cloneable', window })
+const snapshot = $state.snapshot(object);
 ```