fixed translation bugs

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

frontend/src/routes/document/Send.svelte

@@ -19,7 +19,7 @@
         if (resp.ok){
             doc     = await resp.json();
             email   = doc.customer.email;
-            subject = t('new_document_from',t(doc.type),doc.company.name,doc.number),
+            subject = t('new_document_from',{type:t(doc.type),sender:doc.company.name,number:doc.number}),
             error   = null;
         } else {
             error = await resp.text();