[UPD] make column name a variable

templates/operation_templates_page.xml

@@ -27,6 +27,7 @@
                 >Mes Factures Surplus</h3>
                 <t t-if="invoices_surplus">
                     <t t-set="invoices" t-value="invoices_surplus" />
+                    <t t-set="partner_label" t-value="'Acheteur de surplus'" />
                     <t t-call="oacc_portal_account.operation_invoice_table" />
                 </t>
                 <t t-else="">