Added transaltion for Estimate

config/locales/en.yml

@@ -37,6 +37,7 @@ en:
   label_create_payment: "Create Payment"
   label_customer_count: "Customer Count"
   label_customer_link_expires: "This customer link expires in"
+  label_customer: "Customer"
   label_customers: "Customers"
   label_delete: "Delete"
   label_deposit_into: "Deposit to Account"
@@ -50,6 +51,7 @@ en:
   label_error: "Error"
   label_estimate_404: "Estimate not found"
   label_estimate_count: "Estimate Count"
+  label_estimate: "Estimate"
   label_estimates: "Estimates"
   label_hours: "Hours"
   label_invoice_404: "Invoice not found"