core: configure payment_request categories as arrow

this way they will be expanded in simulation

product/ERP5/bootstrap/erp5_core/CategoryTemplateItem/portal_categories/destination_payment_request.xml

@@ -119,7 +119,9 @@
         <item>
             <key> <string>category_type</string> </key>
             <value>
-              <tuple/>
+              <tuple>
+                <string>destination_arrow</string>
+              </tuple>
             </value>
         </item>
         <item>

product/ERP5/bootstrap/erp5_core/CategoryTemplateItem/portal_categories/source_payment_request.xml

@@ -119,7 +119,9 @@
         <item>
             <key> <string>category_type</string> </key>
             <value>
-              <tuple/>
+              <tuple>
+                <string>source_arrow</string>
+              </tuple>
             </value>
         </item>
         <item>