chore: Follow up use 24 hour format

assets/l10n/intl_de.arb

@@ -1,6 +1,10 @@
 {
   "@@locale": "de",
   "@@last_modified": "2021-08-14 12:41:10.119255",
+  "alwaysUse24HourFormat": "true",
+    "@alwaysUse24HourFormat": {
+        "description": "Set to true to always display time of day in 24 hour format."
+  },
   "about": "Über",
   "@about": {
     "type": "text",

assets/l10n/intl_en.arb

@@ -1,6 +1,10 @@
 {
   "@@locale": "en",
   "@@last_modified": "2021-08-14 12:38:37.885451",
+  "alwaysUse24HourFormat": "false",
+    "@alwaysUse24HourFormat": {
+        "description": "Set to true to always display time of day in 24 hour format."
+  },
   "repeatPassword": "Repeat password",
   "@repeatPassword": {},
   "notAnImage": "Not an image file.",

lib/utils/date_time_extension.dart

@@ -35,7 +35,7 @@ extension DateTimeExtension on DateTime {
 
   /// Returns a simple time String.
   String localizedTimeOfDay(BuildContext context) =>
-      MediaQuery.of(context).alwaysUse24HourFormat
+      L10n.of(context)!.alwaysUse24HourFormat == 'true'
           ? DateFormat('HH:mm', L10n.of(context)!.localeName).format(this)
           : DateFormat('h:mm a', L10n.of(context)!.localeName).format(this);