fix: add missing newlines at the end of JSON files; clean up formatting in page components

apps/web/i18n/messages/de/courses.json

@@ -150,15 +150,7 @@
     "overview": "Kurstermine im Überblick",
     "activeCourses": "Aktive Kurse ({count})",
     "noActiveCourses": "Keine aktiven Kurse in diesem Monat.",
-    "weekdays": [
-      "Mo",
-      "Di",
-      "Mi",
-      "Do",
-      "Fr",
-      "Sa",
-      "So"
-    ],
+    "weekdays": ["Mo", "Di", "Mi", "Do", "Fr", "Sa", "So"],
     "months": [
       "Januar",
       "Februar",
@@ -210,4 +202,4 @@
     "addressPlaceholder": "Musterstr. 1, 12345 Musterstadt",
     "roomPlaceholder": "z. B. Raum 101"
   }
-}
+}