fix: move /desktop/install alias to get-docker page

The /desktop/install alias was self-referential, but to a page that was never
rendered

Signed-off-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>

content/get-started/get-docker.md

@@ -10,6 +10,8 @@ aliases:
  - /install/overview/
  - /installation/
  - /get-docker/
+ - /desktop/install/
+ - /desktop/setup/install/
 ---
 
 Docker is an open platform for developing, shipping, and running applications.

content/manuals/desktop/setup/install/_index.md

@@ -3,7 +3,4 @@ build:
   render: never
 title: Install
 weight: 10
-aliases:
-- /desktop/install/
-- /desktop/setup/install/
 ---