pull down to refresh

Yeah is OK. Anyways, you have the option now to update an extension, without need to update the whole LNbits docker repo in your blitz. It's exactly like a Wordpress, you just have to go and update the part you want / need.
Go to "Manage extensions" section and click on the extension you want to update and select the latest version. Done. But not sure if this update for split extension is already released.