Added nvmrc. Updated containter and sample.json

samples/react-pages-hierarchy/.devcontainer/devcontainer.json

@@ -1,7 +1,7 @@
 // For more information on how to run this SPFx project in a VS Code Remote Container, please visit https://aka.ms/spfx-devcontainer
 {
-	"name": "SPFx 1.14.0",
-	"image": "docker.io/m365pnp/spfx:1.14.0",
+	"name": "SPFx 1.18.2",
+	"image": "docker.io/m365pnp/spfx:1.18.2",
 	// Set *default* container specific settings.json values on container create.
 	"settings": {},
 	// Add the IDs of extensions you want installed when the container is created.

samples/react-pages-hierarchy/.nvmrc

@@ -0,0 +1 @@
+v18.18.0

samples/react-pages-hierarchy/assets/sample.json

@@ -9,7 +9,7 @@
       "This web part allows users to create a faux page hierarchy in their pages library and use it for page-to-page navigation."
     ],
     "creationDateTime": "2020-04-30",
-    "updateDateTime": "2023-05-11",
+    "updateDateTime": "2024-01-11",
     "products": [
       "SharePoint"
     ],
@@ -20,7 +20,7 @@
       },
       {
         "key": "SPFX-VERSION",
-        "value": "1.14.0"
+        "value": "1.18.2"
       },
       {
         "key": "SPFX-SUPPORTSTHEMEVARIANTS",