[SystemTray] Fix model update in settings (missing icon)
Summary:
Fixes a bug, when system tray settings is opened and new application is opened, view is not correctly refreshed and icon is missing. Caused by duplicated role names. Related to: D26586
BUG: 416400
FIXED-IN: 5.18.0
Test Plan:
- Open system tray settings
- Open an app with systray icon
Expected:
Icon, title etc are correctly rendered.
Reviewers: Plasma: Workspaces, Plasma, davidedmundson, ngraham, broulik
Reviewed By: Plasma: Workspaces, Plasma, davidedmundson
Subscribers: plasma-devel
Tags: Plasma
Differential Revision: https://phabricator.kde.org/D26850