chore: release notes

Author: lukasbach

next-release-notes.md

@@ -1,9 +1,2 @@
-<!--
-### Breaking Changes
-
 ### Features
-
-### Bug Fixes and Improvements
-
-### Other Changes
--->
+- Add a `expandSubsequently` method on the environment and tree refs, to facilitate searching through items that are not yet opened (#287). See https://rct.lukasbach.com/docs/guides/search#finding-items-that-are-not-loaded-in for details