Better space management in doc

[FlorianJacta]

Description
When the page contains no titles and subtitles, TOC (the blank area in orange here) should be disabled to let content (the area in red) expand to the right.

[Satoshi-Sh]

I want to take this issue.

I have a question. It's working fine on the production, but on the development, I see some errors in manuals/auth/authentication.md, manuals/auth/authorization.md, manuals/auth/aindex.md. Is it only on my end?

[FlorianJacta]

I am assigning you to the issue. I don't understand your problem here. Let me ping @FabienLelaquais

[github-actions]

This issue has been labelled as "🥶Waiting for contributor" because it has been inactive for more than 14 days. If you would like to continue working on this issue, please add another comment or create a PR that links to this issue. If a PR has already been created which refers to this issue, then you should explicitly mention this issue in the relevant PR. Otherwise, you will be unassigned in 14 days. For more information please refer to the contributing guidelines.

[FlorianJacta]

The PR is blocked; the contributor worked on this issue

[github-actions]

This issue has been unassigned automatically because it has been marked as "🥶Waiting for contributor" for more than 14 days with no activity.

[FlorianJacta]

The PR is blocked; there is a contributor assigned