Add missing translation

config/locales/js-de.yml

@@ -128,6 +128,7 @@ de:
     label_total_progress: "Gesamtfortschritt"
     label_watch_work_package: "Arbeitspaket beobachten"
     label_unwatch_work_package: "Arbeitspaket nicht beobachten"
+    label_uploaded_by: "Hochgeladen von"
 
     text_are_you_sure: "Sind Sie sicher?"
 

config/locales/js-en.yml

@@ -127,6 +127,7 @@ en:
     label_total_progress: "Total progress"
     label_watch_work_package: "Watch work package"
     label_unwatch_work_package: "Unwatch work package"
+    label_uploaded_by: "Uploaded by"
 
     text_are_you_sure: "Are you sure?"
 

public/templates/work_packages/tabs/_attachments_table.html

@@ -4,7 +4,7 @@
     <tr>
       <th>{{ I18n.t('js.label_filename')}}</th>
       <th>{{ I18n.t('js.label_filesize')}}</th>
-      <th>Uploaded by</th>
+      <th>{{ I18n.t('js.label_uploaded_by')}}</th>
       <th>{{ I18n.t('js.label_description')}}</th>
       <th>{{ I18n.t('js.label_date')}}</th>
     </tr>