fix: Incorrectly generated Next & Prev buttons according to weight

[JeremyTubongbanua]

Describe the bug

The weight: of each single page is as follows

@sign 200
Pricing / Costs 201
Encryption 202
Privacy 203
Polymorphism 204
Public and Private Keys 205
Self Encryption keys 206
CRAM 207
PKAM 208
Namespace 209
Synchronization 210
Notification 211

(See commit 399283b to view those weight changes)

The breadcrumb for @sign (weight 200) has a previous breadcrumb button that goes to "Setup dess on GCP (Google Cloud Platform)

To Reproduce
Open the @sign page on your machine

Expected behavior
Maybe either go to the root _index.md page (docs/reference/)
or remove the breadcrumb altogether.

Screenshots

[JeremyTubongbanua]

FYI

Starting with weight: 1 and going to weight: 11, introduced more bugs with breadcrumbs where weight: 1 through weight: 3 showed unpredictable behavior.

[XavierChanth]

Interesting, I will investigate next week, for now you can ignore these, and just use weights as intended for order.