address asdf install feedback

Author: jhcpeixoto

apps/site/snippets/en/download/asdf.bash

@@ -8,4 +8,4 @@ asdf plugin add nodejs https://github.com/asdf-vm/asdf-nodejs.git
 asdf install nodejs ${props.release.version}
 
 # Set Node.js as the global default:
-asdf set -u nodejs ${props.release.version}
+asdf global nodejs ${props.release.version}

apps/site/util/download/index.tsx

@@ -86,10 +86,6 @@ const createIcon = (
 
   const IconComponent = IconModule[iconName];
 
-  if (!IconComponent) {
-    return undefined;
-  }
-
   return <IconComponent width={16} height={16} />;
 };