Profile shortcuts switch profile instead of opening new tab

Summary:
This is a proposal to modify the profile shortcuts behaviour:
instead of opening a new tab with the corresponding profile
they now switch the profile of the current terminal display.

FEATURE: 319926

Reviewers: #konsole, hindenburg, tcanabrava

Reviewed By: #konsole, hindenburg

Subscribers: loh.tar, konsole-devel

Tags: #konsole

Differential Revision: https://phabricator.kde.org/D17374