A common power user complaint about Plasma is the lack of a
Ctrl+Alt+T keyboard shortcut to open Konsole. It turns out
that one has existed for quite some time in the form of an
off-by-default example for instructional purposes, shipped with
khotkeys.

This patch adds one such shortcut to Konsole itself, ensuring that
it will always be available when Konsole is installed.

Either log into a new user account or reboot into an existing user
account; Ctrl+Alt+T opens Konsole! It even includes the
bouncing app launch animation since Konsole opened via the
desktop file.

The shortcut itself shows up as a sub-item under the KMenuEdit
category in the Shortcuts KCM: