docs: added manage claims documentation (#3944)

* docs: added manage claims documentation

* remove sidebar item

* fixed link

www/docs/sidebars.js

@@ -784,12 +784,9 @@ module.exports = {
           label: "Admin: Manage Returns",
         },
         {
-          type: "link",
-          href: "#",
+          type: "doc",
+          id: "modules/orders/admin/manage-claims",
           label: "Admin: Manage Claims",
-          customProps: {
-            sidebar_is_soon: true,
-          },
         },
         {
           type: "link",
@@ -799,14 +796,6 @@ module.exports = {
             sidebar_is_soon: true,
           },
         },
-        {
-          type: "link",
-          href: "#",
-          label: "Admin: Manage Return Reasons",
-          customProps: {
-            sidebar_is_soon: true,
-          },
-        },
         {
           type: "link",
           href: "#",