docs: Show consul intention list in nav sidebar

Ensure `consul intention list` command is displayed in the navigation
sidebar.

Fixes #12036

Author: blake

Diff for: website/data/commands-nav-data.json

@@ -297,8 +297,7 @@
       },
       {
         "title": "list",
-        "path": "intention/list",
-        "hidden": true
+        "path": "intention/list"
       },
       {
         "title": "match",