desktop: add missing redirects for dashboard

The dashboard topic was rolled up into the "get-started" section in commit
ab0dee78a2, which removed links from the TOC.
The page itself was removed in 13ee3ff426, but
forgot to add/copy the redirects.

This patch adds the redirects back, and fixes some links to the page that's
now missing.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

_includes/landing-page/volume-management.html

@@ -10,7 +10,7 @@
         </h5>
       </div>
       <div class="col-xs-12 col-md-6 col-lg-4 text-center">
-        <a class="btn" href="/desktop/dashboard/#explore-volumes" target="_blank" rel="noopener">
+        <a class="btn" href="/desktop/use-desktop/volumes/" target="_blank" rel="noopener">
           Learn more
         </a>
       </div>

_layouts/landing.html

@@ -233,7 +233,7 @@
               <h6>Popular articles</h6>
               <p class="only-win"><a href="/desktop/windows/wsl/">Docker Desktop WSL 2 backend</a></p>
               <p class="only-mac"><a href="/desktop/install/mac-install/">Install Docker Desktop on Mac</a></p>
-              <p><a href="/desktop/dashboard/">Docker Desktop Dashboard</a></p>
+              <p><a href="/desktop/#overview-of-docker-dashboard">Docker Desktop Dashboard</a></p>
               <p class="only-win"><a href="/desktop/kubernetes/">Deploy on Kubernetes</a></p>
               <p class="only-win"><a href="/desktop/windows/release-notes/">Release notes</a></p>
               <p class="only-win"><a href="/desktop/windows/troubleshoot/">Logs and troubleshooting</a></p>

desktop/index.md

@@ -3,10 +3,12 @@ description: Docker Desktop overview
 keywords: Desktop, Docker, GUI, run, docker, local, machine, dashboard
 title: Docker Desktop
 redirect_from:
-- /desktop/opensource/
-- /docker-for-mac/opensource/
-- /docker-for-windows/opensource/
 - /desktop/dashboard/
+- /desktop/opensource/
+- /docker-for-mac/dashboard/
+- /docker-for-mac/opensource/
+- /docker-for-windows/dashboard/
+- /docker-for-windows/opensource/
 ---
 
 > **Update to the Docker Desktop terms**