docs: update order module's conceptual guides (#7893)

* fixes + add return document

* update order conceptual guides

* resolve todo

* re-generate files map

www/apps/resources/sidebar.mjs

@@ -514,14 +514,22 @@ export const sidebar = sidebarAttachHrefCommonOptions([
                 path: "/commerce-modules/order/transactions",
                 title: "Transactions",
               },
-              {
-                path: "/commerce-modules/order/order-change",
-                title: "Order Change",
-              },
               {
                 path: "/commerce-modules/order/order-versioning",
                 title: "Order Versioning",
               },
+              {
+                path: "/commerce-modules/order/return",
+                title: "Return",
+              },
+              {
+                path: "/commerce-modules/order/exchange",
+                title: "Exchange",
+              },
+              {
+                path: "/commerce-modules/order/claim",
+                title: "Claim",
+              },
               {
                 path: "/commerce-modules/order/relations-to-other-modules",
                 title: "Relations to Other Modules",