Add link to unpaid invoices to invoice index page

app/views/finance/invoices/index.html.haml

@@ -1,6 +1,7 @@
 - title t('.title')
 
 - content_for :actionbar do
+  = link_to t('.show_unpaid'), unpaid_finance_invoices_path, class: 'btn'
   = link_to t('.action_new'), new_finance_invoice_path, class: 'btn btn-primary'
 
 #invoicesTable= render 'invoices'

config/locales/de.yml

@@ -893,6 +893,7 @@ de:
         attachment_hint: Es sind nur JPEG und PDF erlaubt.
       index:
         action_new: Neue Rechnung anlegen
+        show_unpaid: Unbezahlte Rechnungen anzeigen
         title: Rechnungen
       new:
         title: Neue Rechnung anlegen

config/locales/en.yml

@@ -918,6 +918,7 @@ en:
         attachment_hint: Only JPEG and PDF are allowed.
       index:
         action_new: Create new invoice
+        show_unpaid: Show unpaid invoices
         title: Invoices
       new:
         title: Create new invoice