- Double-clicking on name opens Edit Profile dialog
 - Only allow renaming from the Edit Profile dialog
 - Upon renaming of a profile, change shortcut to new profile name
 - Upon renaming of a profile, delete old named profile file.
 - Do not allow renaming of a profile if that name already exists.

Patch by ahmadsamir; I made a few changes (name/const).

Differential Revision: https://phabricator.kde.org/D9272