Improve Long and Short detail header layout

modules/purchase_trade/view/ctrm_long_short_detail_context_form.xml

@@ -18,10 +18,12 @@
         <field name="counterparty"/>
         <label name="direction"/>
         <field name="direction"/>
+        <label name="reference"/>
+        <field name="reference"/>
     </group>
 
     <group id="detail_status_filters" string="Lot &amp; logistics"
-        colspan="12" col="12">
+        colspan="12" col="8">
         <label name="asof"/>
         <field name="asof"/>
         <label name="todate"/>
@@ -50,7 +52,7 @@
     </group>
 
     <group id="detail_purchase_filters" string="Purchase side"
-        colspan="6" col="4">
+        colspan="12" col="8">
         <label name="supplier"/>
         <field name="supplier"/>
         <label name="purchase"/>
@@ -66,7 +68,7 @@
     </group>
 
     <group id="detail_sale_filters" string="Sale side"
-        colspan="6" col="4">
+        colspan="12" col="8">
         <label name="client"/>
         <field name="client"/>
         <label name="sale"/>
@@ -80,10 +82,4 @@
         <label name="sale_period_to"/>
         <field name="sale_period_to"/>
     </group>
-
-    <group id="detail_reference_filters" string="Reference"
-        colspan="12" col="2">
-        <label name="reference"/>
-        <field name="reference"/>
-    </group>
 </form>