chore(release): v0.20.0

changes/jetbrains-package-window.md

@@ -1,10 +0,0 @@
-bump: minor
-type: feat
-The JetBrains plugin (1.6.0) has a Ludic tool window for the package, like the Gradle one:
-- an overview of the package (what it is, entry, version, dependencies, scripts, hooks, app);
-- its commands, scripts and hooks, run by double-click, with each command's hooks shown;
-- its dependencies against package.lock.ludic: the locked version, whether it is fetched
-  and linked, the indirect ones, and Fetch, Update, Verify, Vendor, Add and Remove;
-- the app preview the `app` lines describe, and the asset roots with missing ones marked.
-The bar over package.ludic now appears only when something needs doing (fetch, or no
-toolchain), instead of carrying every command.