[WIP] Help Center - Switching from 9 to 16 Knowledge Bases

[Y0Coss]

What type of Pull Request is this?

• Optimization
• Index categories update
• Deletion of guide(s)

Description

We will soon switch our distribution of documentation from the current 9 KBs to 16 KBS, providing more direct access to products guides to customers.
This PR includes the following:

• Index update
• Index translations update
• Reference_category updates for multi-located guides
• Deletion of the deprecated Labs KB

Mandatory information

• This Pull Request can be merged as soon as possible.
• This Pull Request shouldn't be merged before approval of @Y0Coss

• This Pull Request content should be replicated for the US OVHcloud documentation : NO

[Y0Coss]

This switch will need a global overhaul. Closing the PR.