docs: added new guides and troubleshooting related to admin development (#8739)

www/apps/book/sidebar.mjs

@@ -251,7 +251,7 @@ export const sidebar = numberSidebarItems(
             {
               type: "link",
               path: "/advanced-development/workflows/constructor-constraints",
-              title: "Workflow Constraints",
+              title: "Constraints",
             },
             {
               type: "link",
@@ -330,6 +330,11 @@ export const sidebar = numberSidebarItems(
               path: "/advanced-development/admin/ui-routes",
               title: "Admin UI Routes",
             },
+            {
+              type: "link",
+              path: "/advanced-development/admin/constraints",
+              title: "Constraints",
+            },
             {
               type: "link",
               path: "/advanced-development/admin/tips",