Added Translation for error message on sending a file. Also included the German Version.

src/widget/form/chatform.cpp

@@ -673,7 +673,7 @@ void ChatForm::onFileSendFailed(int FriendId, const QString &fname)
     if (FriendId != f->getFriendID())
         return;
 
-    addSystemInfoMessage("File: \"" + fname + "\" failed to send.", "red", QDateTime::currentDateTime());
+    addSystemInfoMessage(tr("Failed to send file") + ": \"" + fname + "\"", "red", QDateTime::currentDateTime());
 }
 
 void ChatForm::onAvatarChange(int FriendId, const QPixmap &pic)

translations/de.ts

@@ -257,6 +257,11 @@ Soll der Proxy ignoriert und eine direkte Internetverbindung genutzt werden?</tr
         <source>Call rejected</source>
         <translation>Anruf abgewiesen</translation>
     </message>
+    <message>
+        <location filename="../src/widget/form/chatform.cpp" line="676"/>
+        <source>Failed to send file</source>
+        <translation>Fehler beim Senden der Datei</translation>
+    </message>
     <message>
         <location filename="../src/widget/form/chatform.cpp" line="804"/>
         <source>Call with %1 ended. %2</source>