I would like to add expander menu items in the appshell menu as below I could not find any example for it. Is there a way to implement it? i think that, someho
yii2-urlmanager
pgadmin-5
population-count
force-download
mri
terraform-provider-github
tempdata
android-activity
xcode-ui-testing
jack
context-bound
imodeljs
x-forwarded-for
hacker-news-api
spin
discrete-space
one-time-pad
repeatable-read
asp.net-blazor
beeswarm
dat.gui
amazon-redshift-spectrum
kubeflow-pipelines
amazon-product-api
neo4j-desktop
c4
custom-button
dask-kubernetes
seam
turnip