Add monthly invoice email description

app/views/mailers/invoice_mailer/invoice_email.html.erb

@@ -1,4 +1,5 @@
-<%= t(:you_have_a_new_invoice) %>
+<%= t(:you_have_a_new_invoice) %><br>
+<%= t(:monthly_invoice) if @invoice.monthly_invoice %>
 <br><br>
 <%= t(:sincerely) %>,<br>
 <%= Setting.registry_invoice_contact %><br>

app/views/mailers/invoice_mailer/invoice_email.text.erb

@@ -1,4 +1,5 @@
 <%= t(:you_have_a_new_invoice) %>
+<%= t(:monthly_invoice) if @invoice.monthly_invoice %>
 
 <%= t(:sincerely) %>,
 <%= Setting.registry_invoice_contact %>

config/locales/en.yml

@@ -540,6 +540,7 @@ en:
   bind_manually: 'Bind manually'
   client: 'Client'
   you_have_a_new_invoice: 'You have a new invoice.'
+  monthly_invoice: "Here comes the report with the last month's credit account activities."
   sincerely: 'Sincerely'
   expiry: 'Expiry'
   failed_to_create_crt_csr_already_signed: 'Failed to create certificate: CSR is already signed'

config/locales/et.yml

@@ -11,3 +11,6 @@ et:
     already_paid: " (juba makstud)"
     monthly_invoice: " (kuuaruanne)"
     monthly_invoice_description: 'Kuuaruanne'
+  you_have_a_new_invoice: 'Teil on uus arve.'
+  monthly_invoice: "Siit tuleb aruanne möödunud kuul ettemaksukontoga seotud tasuliste toimingutega."
+  sincerely: 'Lugupidamisega'