Fix gettext.

frontend/scss/azuracast/overrides/_material-icons.scss

@@ -3,4 +3,16 @@
     @include reset-material-icons($material-icon-size * 2);
     line-height: 0.5em;
   }
+
+  .btn > & {
+    margin-right: calc($btn-padding-x / 2);
+  }
+
+  .btn-lg > & {
+    margin-right: calc($btn-padding-x-lg / 2);
+  }
+
+  .btn-sm > & {
+    margin-right: calc($btn-padding-x-sm / 2);
+  }
 }

frontend/vue/vendor/gettext.js

@@ -2,7 +2,7 @@ import translations from "../../../translations/translations.json";
 import {createGettext} from "vue3-gettext";
 
 export default createGettext({
-    defaultLanguage: 'en_US',
+    defaultLanguage: App.locale,
     translations: translations,
     silent: true
 });