Mark notification drawer title for translation

The NotificationDrawerHeader was rendered without a title prop,
falling back to PatternFly's hardcoded English "Notifications" string.

Author: stefanonardo

frontend/public/components/notification-drawer.tsx

@@ -452,7 +452,10 @@ export const NotificationDrawer: FC<NotificationDrawerProps> = ({
 
   return (
     <PfNotificationDrawer ref={drawerRef}>
-      <NotificationDrawerHeader onClose={toggleNotificationDrawer} />
+      <NotificationDrawerHeader
+        title={t('public~Notifications')}
+        onClose={toggleNotificationDrawer}
+      />
       <NotificationDrawerBody>
         <NotificationDrawerGroupList>
           {[criticalAlertCategory, nonCriticalAlertCategory, recommendationsCategory]}

frontend/public/locales/en/public.json

@@ -1124,6 +1124,7 @@
   "Notifications in the other alerts group": "Notifications in the other alerts group",
   "Recommendations": "Recommendations",
   "Notifications in the recommendations group": "Notifications in the recommendations group",
+  "Notifications": "Notifications",
   "No PersistentVolume": "No PersistentVolume",
   "PersistentVolume": "PersistentVolume",
   "Capacity": "Capacity",