Install kopano-webapp-quickitems by entering the following commands in the terminal:
sudo apt update sudo apt install kopano-webapp-quickitems
Description:
Kopano WebApp quick items plugin
This package is a plugin for kopano-webapp, a web interface for Kopano from Zarafa. . Quick Items plugin for koapno-webapp. Adds special widgets to the WebApp which makes it easier to create new mails, appointments, contacts, tasks and notes.
Homepage: https://github.com/Kopano-dev/kopano-webapp
Version: 3.4.6+dfsg1-1
Section: universe/web