docs: small fixes to workflow constraints chapter (#11421)

* docs: small fixes to workflow constraints chapter

* add links to plugins in nav

www/apps/book/sidebar.mjs

@@ -135,7 +135,7 @@ export const sidebar = sidebarAttachHrefCommonOptions([
           {
             type: "link",
             path: "/learn/fundamentals/modules/modules-directory-structure",
-            title: "Modules Directory Structure",
+            title: "Directory Structure",
           },
           {
             type: "link",
@@ -340,6 +340,11 @@ export const sidebar = sidebarAttachHrefCommonOptions([
         path: "/learn/fundamentals/workflows",
         title: "Workflows",
         children: [
+          {
+            type: "link",
+            path: "/learn/fundamentals/workflows/constructor-constraints",
+            title: "Constructor Constraints",
+          },
           {
             type: "link",
             path: "/learn/fundamentals/workflows/variable-manipulation",
@@ -350,11 +355,6 @@ export const sidebar = sidebarAttachHrefCommonOptions([
             path: "/learn/fundamentals/workflows/conditions",
             title: "When-Then Conditions",
           },
-          {
-            type: "link",
-            path: "/learn/fundamentals/workflows/constructor-constraints",
-            title: "Constructor Constraints",
-          },
           {
             type: "link",
             path: "/learn/fundamentals/workflows/compensation-function",