chore: fix release notes

Author: lukasbach

next-release-notes.md

@@ -1,9 +1,7 @@
-<!--
-### Breaking Changes
-
 ### Features
+* Make drop target depth in last-of-subtree locations dependent on x-coordinates of the mouse, allowing the user to
+  drop in higher depths than the currently hovering item. This behavior is automatically used if renderDepthOffset
+  on the renderers is set to a non-zero value. (#148)
 
-### Bug Fixes and Improvements
-
-### Other Changes
--->
+❤️ This development of this release was supported and [sponsored](https://github.com/sponsors/lukasbach) by
+[Modyfi](https://modyfi.com). Thank you for contributing to the development of this library!