[BUG] Reference sidebar TOC ordering oddities

[feorlen]

Depending on which page you are viewing, the order of items in the Reference left sidebar TOC varies in unexpected ways.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://min.io/docs/minio/kubernetes/upstream/index.html

   The items in the Reference TOC:

   MinIO Client
   MinIO Admin Client
   Integrations
   MinIO Kubernetes Plugin
   Glossary
   

2. Click on MinIO Client

   The items in the Reference TOC:

   MinIO Client
       [list of mc commands]
   MinIO Admin Client
   Deprecated Commands
   MinIO Server
   Integrations
   Glossary
   

3. Click on MinIO Admin Client

   The items in the Reference TOC:

   MinIO Client
   MinIO Admin Client
       [list of mc admin commands]
   Deprecated Commands
   MinIO Server
   Integrations
   Glossary
   

4. Deprecated Commands, MinIO Server, and MinIO Kubernetes Plugin may or may not be visible in the TOC, depending on which page you have open

Expected behavior

Consistent TOC contents and order

[ravindk89]

Aha - so this is due to an interesting thing that we do to avoid duplication of things.

That is - the actual links for MinIO Client in the left nav for non-Linux properties is an extlink to the Linux page.

This is mostly to avoid really weird duplicate symbol issues from Kubernetes having its own full copy of the minio client definitions.

That also means that at some point the left-nav got slightly out of whack.

We can fix this by modifying the left-navs for non-Linux structures to also link out to the Deprecated Commands page.

Its probably fine if we do not link to the Kubernetes Plugin page from non-K8s properties.