update changelog

Author: dummdidumm

CHANGELOG.md

@@ -3,6 +3,10 @@
 ## Unreleased
 
 * Avoid `maximum call stack size exceeded` errors on large components ([#4694](https://github.com/sveltejs/svelte/issues/4694))
+* Keep space in `<pre>` tags or when `preserveWhitespace` is `true`([#6437](https://github.com/sveltejs/svelte/issues/6437), [#4731](https://github.com/sveltejs/svelte/issues/4731))
+* Better error message when trying to use style directives on inline components ([#7177](https://github.com/sveltejs/svelte/issues/7177))
+* Add `FormData` as a known global ([#7199](https://github.com/sveltejs/svelte/pull/7199))
+* Mark `css`/`instance`/`module` Ast properties as optional ([#7204](https://github.com/sveltejs/svelte/pull/7204))
 
 ## 3.46.3