Strange behaviour of horizontal line element when adding it inside a collapsible text box #3963
Description
Describe the Bug
The bug is related to the horizontal bar and collapsible text box elements:
I have recorded a little video below, but I will try to explain it as well here.
When you add a horizontal bar and write text just before and after it, then close and save the changes to the page, all is fine. Also, when you enter that page again in edit mode, nothing changes, apart from what you want to add/modify this time.
Things changes when you add the horizontal line inside a collapsible text box.
After adding it inside them, close and save, and then enter again in edit mode, there's an extra space just before and after this line. So, now you have delete these extra spaces manually, every time you want to make any changes to that page.
Note: It's happening since many versions before this one, but I just thought it was a little bug that may be fixed in an upcomming release. That's why I didn't report it until now.
Steps to Reproduce
1. Enter in edit mode, and add a Collapsible Text Box element.
2. Add a Horizontal Line element (or more) inside it, and write some text before/after it.
3. Save the page.
4. Open the previous page in edit mode again.
5. You will see the bug.
Expected Behaviour
No extra blank spaces are created before/after the Horizontal Line element, when it's added inside a Collapsible Text Box.
Screenshots or Additional Context
Video about the problem:
Desktop.11-01-2023.21-25-53.mp4
Browser Details
Firefox v108.0.2
Exact BookStack Version
v22.11.1
PHP Version
v8.0.25
Hosting Environment
Docker container (linuxserver)
https://github.com/linuxserver/docker-bookstack/pkgs/container/bookstack
Using: latest (tag)