[FIX] sale_margin: conflicting view ids

Finetuning of #85774
Fixes #86174

closes odoo/odoo#86198

Signed-off-by: Victor Feyens (vfe) <vfe@odoo.com>

addons/sale_margin/views/sale_margin_view.xml

@@ -55,7 +55,7 @@
         </field>
     </record>
 
-    <record model="ir.ui.view" id="sale_margin_sale_order_pivot">
+    <record model="ir.ui.view" id="sale_margin_sale_order_graph">
         <field name="name">sale.order.margin.view.graph</field>
         <field name="model">sale.order</field>
         <field name="inherit_id" ref="sale.view_sale_order_graph"/>