fix(nav): hide shared-content installation section from sidebar

docs/content/tutorials/deploy-application/index.md

@@ -16,9 +16,7 @@ Add the following to `app.bicep`:
 
 {{% rad file="snippets/app.bicep" embed=true marker="//IMPORT" %}}
 
-The `extension radius` statement imports the resource types built into Radius. 
-
-The `extension radiusResources` statement imports the PostgreSQL resource type created in the previous step.
+The `extension radius` statement imports the resource types built into Radius.
 
 {{% rad file="snippets/app.bicep" embed=true marker="//PARAM" %}}
 

docs/content/tutorials/deploy-application/snippets/app.bicep

@@ -1,6 +1,5 @@
 //IMPORT
 extension radius
-extension radiusResources
 //IMPORT
 
 //PARAM

docs/shared-content/installation/_index.md

@@ -0,0 +1,14 @@
+---
+title: "Installation shared content"
+build:
+  list: never
+  render: never
+  publishResources: false
+cascade:
+  build:
+    list: never
+    render: never
+    publishResources: false
+---
+
+<!-- Include-only snippets used via {{< read >}}; hidden from nav/rendering. -->