Docs: redirect Desktop install links to Learn (#1556)

* point install Desktop redirect to Learn

* hide /api-concepts/desktop and redirect to Learn

* add permanent redirect for /api-clients/desktop to Learn

website/content/docs/getting-started/index.mdx

@@ -15,8 +15,7 @@ The examples in Getting Started all revolve around running in `dev mode`. There
 1. [Docker](https://docs.docker.com/get-docker/) is installed
 1. A route to download the [Postgres Docker image](https://hub.docker.com/_/postgres) is available or a local image cache is available
 1. A [Boundary binary](https://www.boundaryproject.io/downloads) in your `$PATH`
-1. Optionally, an [installation of Boundary Desktop](/docs/api-clients/desktop#install-boundary-desktop) if you want to use the
-   desktop examples
+1. Optionally, an [installation of Boundary Desktop](https://learn.hashicorp.com/tutorials/boundary/getting-started-desktop-app) if you want to use the desktop examples
 
 ## What is Dev Mode?
 

website/data/docs-nav-data.json

@@ -76,7 +76,12 @@
       },
       {
         "title": "Desktop",
+        "hidden": true,
         "path": "api-clients/desktop"
+      },
+      {
+        "title": "Desktop",
+        "href": "https://learn.hashicorp.com/tutorials/boundary/getting-started-desktop-app"
       }
     ]
   },

website/redirects.js

@@ -29,6 +29,12 @@ module.exports = [
     destination: '/docs/api-clients/desktop#connect',
     permanent: false,
   },
+  {
+    source: '/docs/api-clients/desktop',
+    destination:
+      'https://learn.hashicorp.com/tutorials/boundary/getting-started-desktop-app',
+    permanent: true,
+  },
 
   /////////////////////////////////
   // DOMAIN MODEL CONCEPTS