update CHANGELOG and TODO

Author: adbenitez

CHANGELOG.md

@@ -7,6 +7,10 @@ release date when you use `npm version` (see `README.md`).
 
 ## [Unreleased]
 
+### Changed
+
+- use `@webxdc/types` instead of own types declaration
+
 ## [0.18.0][] - 2024-11-16
 
 ### Changed

TODO.md

@@ -59,11 +59,6 @@
   port: for instance, if you open an instance again the server doesn't know to
   clear it first, because it thinks it already been cleared previously.
 
-## Webxdc development
-
-- Make typescript types for webxdc available as a standalone package so that
-  developers can use this in their own projects.
-
 ## Other
 
 - Update webxdc specification based on what I learned about it.