Set English as base language with DE fallback

index.html

@@ -1277,8 +1277,8 @@ window.weatherThemes = {
         ];
 
         var LANGUAGE_OPTIONS = [
-            { value: 'de', label: 'DE' },
-            { value: 'en', label: 'EN' }
+            { value: 'en', label: 'EN' },
+            { value: 'de', label: 'DE' }
         ];
 
         function applyI18n() {