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

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

@@ -150,15 +150,7 @@
     "overview": "Overview of course dates",
     "activeCourses": "Active Courses ({count})",
     "noActiveCourses": "No active courses this month.",
-    "weekdays": [
-      "Mon",
-      "Tue",
-      "Wed",
-      "Thu",
-      "Fri",
-      "Sat",
-      "Sun"
-    ],
+    "weekdays": ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],
     "months": [
       "January",
       "February",
@@ -210,4 +202,4 @@
     "addressPlaceholder": "123 Main St, Springfield",
     "roomPlaceholder": "e.g. Room 101"
   }
-}
+}