feat: cleanup profile page

frontend/app/src/assets/i18n/de.json

@@ -501,8 +501,10 @@
       "logInPrompt": "Bitte loggen Sie sich ein, um Ihre Nutzerdaten sehen zu können."
     },
     "courses": {
-      "today": "Heute",
-      "no_courses": "Heute stehen keine Termine mehr an."
+      "no_courses": "Heute stehen keine Termine mehr an.",
+      "NO_EVENT": "Keine Termine",
+      "ONE_EVENT": "Ein Termin",
+      "MANY_EVENT": "{{count}} Termine"
     }
   },
   "settings": {

frontend/app/src/assets/i18n/en.json

@@ -501,8 +501,10 @@
       "logInPrompt": "Please log in to view your user data."
     },
     "courses": {
-      "today": "Today",
-      "no_courses": "There are no more appointments scheduled today."
+      "no_courses": "There are no more appointments scheduled today.",
+      "NO_EVENT": "no events",
+      "ONE_EVENT": "one event",
+      "MANY_EVENT": "{{count}} events"
     }
   },
   "settings": {