Fix global links in KB Account and service management

[DoStupidThingsFasterWithMoreEnergy]

The purpose of these pull requests (Fix global links in KB ...) is to replace all links referenced in /links with their /links values.

Example: replace all https://www.ovh.com/auth/?action=gotomanager&from=https://www.ovh.co.uk/&ovhSubsidiary=GB links with /links/manager.

I've seen that a lot have been replaced by your work, but I've also found a lot, which is why I'm making pr by kb.

These are not a priority, however, I think they can help you make the documentation source more consistent and can prevent possible errors.

Sorry for closing my last pull requests, but I noticed a first error followed by a second one... so I fixed them and for me it's now OK.

FYI it is also possible to automate it using the methods I mentioned in the issue: #8038

Be free to change the titles or to ask me any question.

Thank you for your reviews.

@Y0Coss no need for the Fix label, maybe Minor Update and even then, I'll let you be the judge.