Dashboard widgets: fix group name (systemInfo, not systemInformation)

The group identifier comes from EXT:dashboard DashboardWidgetGroups.php; with an unknown group the widgets never appeared in the add-widget dialog.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

packages/vitec/Configuration/Services.yaml

@@ -34,7 +34,7 @@ services:
     tags:
       - name: dashboard.widget
         identifier: vitecSsrStatus
-        groupNames: systemInformation
+        groupNames: systemInfo
         title: 'VITEC: SSR / VPS-Status'
         description: 'Live-Zustand des SSR-Servers (Release, Cache, Erreichbarkeit) und der Auslieferungs-Schalter'
         iconIdentifier: 'content-widget-text'
@@ -45,7 +45,7 @@ services:
     tags:
       - name: dashboard.widget
         identifier: vitecSsrStats
-        groupNames: systemInformation
+        groupNames: systemInfo
         title: 'VITEC: SSR-Statistik'
         description: 'Purge-Protokoll und Verfügbarkeit des SSR-Servers (14 Tage Historie)'
         iconIdentifier: 'content-widget-number'