Hide desktop notifications until you're ready to look at them
Description
Do Not Disturb Button provides a panel button to temporarily hide
incoming notifications in GNOME Shell. A count of notifications appears
next to the panel button, and notifications remain hidden in the
notifications message tray, until you choose to show and dismiss
them. You can also assign a keyboard shortcut to toggle the Do Not
Disturb status.
(Do Not Disturb Button allows you to set the "available" or "busy"
status for desktop notifications only, not the status of chat or other
applications connected to GNOME's Online Accounts.)
