Add ipympl to jupyterlite-host env

Author: ksunden

pixi.toml

@@ -87,6 +87,7 @@ jupyterlite-xeus = "*"
 notebook = "~=7.2.1"
 jupyterlab-myst = ">=2.4"
 jupytext = ">=1.16"
+ipympl = ">=0.9"
 
 [feature.jupyterlite-host.tasks]
 setup_wasm = {cmd = "pixi install -e jupyterlite-runtime", inputs = ["pixi.lock"]}