Add created_by to invoice and show it

config/locales/de.yml

@@ -54,6 +54,8 @@ de:
         total_price: Summe
       invoice:
         amount: Betrag
+        created_at: Erstellt am
+        created_by: Erstellt von
         date: Rechnungsdatum
         delivery: Lieferung
         deposit: Pfand berechnet

config/locales/en.yml

@@ -54,6 +54,8 @@ en:
         total_price: Sum
       invoice:
         amount: Amount
+        created_at: Created at
+        created_by: Created by
         date: Billing date
         delivery: Delivery
         deposit: Deposit charged

config/locales/fr.yml

@@ -54,6 +54,8 @@ fr:
         total_price: Total
       invoice:
         amount: Montant
+        created_at: Créé le
+        created_by: "Établi par"
         date: Date de facturation
         delivery: Réapprovisionnement
         deposit: Consigne facturée

config/locales/nl.yml

@@ -54,6 +54,8 @@ nl:
         total_price: Som
       invoice:
         amount: Bedrag
+        created_at: Gemaakt op
+        created_by: Gemaakt door
         date: Factuurdatum
         delivery: Levering
         deposit: Statiegeld in rekening gebracht