Horizontal Jauge bar for longs pages

[fvz]

Describe the feature you'd like

Hello Dan, Thank you for this great tool bookstack. Thanks for your effort.

I thought about an idea of a "horizontal jauge bar" who can help to view our progression in reading of a long page.

You can view an powerful example on this page : https://www.haproxy.com/blog/introduction-to-haproxy-logging

Describe the benefits this would bring to existing BookStack users

It can help the reader to view its progression in reading a long page.

Can the goal of this request already be achieved via other means?

No

Have you searched for an existing open/closed issue?

• [x] I have searched for existing issues and none cover my fundamental request

How long have you been using BookStack?

3 months to 1 year

Additional context

No response

[fvz]