fix(dashboard): summary section return fixes (#8770)

**What**
- open receive Return if only one exists
- fix double dashed divider

---

FIXES CC-287 CC-361

packages/admin-next/dashboard/src/routes/orders/order-detail/components/order-summary-section/order-summary-section.tsx

@@ -168,8 +168,21 @@ export const OrderSummarySection = ({ order }: OrderSummarySectionProps) => {
       <Total order={order} />
 
       {(showAllocateButton || showReturns || showPayment || showRefund) && (
-        <div className="bg-ui-bg-subtle flex items-center justify-end rounded-b-xl px-4 py-4 gap-x-2">
+        <div className="bg-ui-bg-subtle flex items-center justify-end gap-x-2 rounded-b-xl px-4 py-4">
-          {showReturns && (
+          {showReturns &&
+            (returns.length === 1 ? (
+              <Button
+                onClick={() =>
+                  navigate(
+                    `/orders/${order.id}/returns/${returns[0].id}/receive`
+                  )
+                }
+                variant="secondary"
+                size="small"
+              >
+                {t("orders.returns.receive.action")}
+              </Button>
+            ) : (
               <ButtonMenu
                 groups={[
                   {
@@ -187,7 +200,7 @@ export const OrderSummarySection = ({ order }: OrderSummarySectionProps) => {
                   {t("orders.returns.receive.action")}
                 </Button>
               </ButtonMenu>
-          )}
+            ))}
 
           {showAllocateButton && (
             <Button
@@ -550,7 +563,7 @@ const ReturnBreakdown = ({
     item && (
       <div
         key={orderReturn.id}
-        className="txt-compact-small-plus text-ui-fg-subtle bg-ui-bg-subtle flex flex-row justify-between gap-y-2 border-b-2 border-t-2 border-dotted px-6 py-4"
+        className="txt-compact-small-plus text-ui-fg-subtle bg-ui-bg-subtle flex flex-row justify-between gap-y-2 border-t-2 border-dotted px-6 py-4"
       >
         <div className="flex items-center gap-2">
           <ArrowDownRightMini className="text-ui-fg-muted" />