client: Use translation for auto-detect

src/public/app/widgets/type_widgets/editable_text.js

@@ -99,7 +99,7 @@ function buildListOfLanguages() {
     return [
         {
             language: mimeTypesService.MIME_TYPE_AUTO,
-            label: "Auto"
+            label: t("editable-text.auto-detect-language")
         },
         ...userLanguages
     ];

src/public/translations/en/translation.json

@@ -1497,5 +1497,8 @@
     "move-to-visible-launchers": "Move to visible launchers",
     "move-to-available-launchers": "Move to available launchers",
     "duplicate-launcher": "Duplicate launcher"
+  },
+  "editable-text": {
+    "auto-detect-language": "Auto-detected"
   }
 }