Add padding to make chapter/title link clickable

[Isotab]

Description

With the tracker bar located up top you cannot click the title/chapter links because they become hidden, this simply adds a padding class that moves those links down enough to be clicked. It is a small thing but a bit annoying

Type of change

• [ x ] Bug fix (non-breaking change which fixes an issue)

Checklist:

These don't have to be all checked, but if you can it would be very helpful.

• [ ] If this is supporting a new site, have you done everything mentioned in the "Supporting New Sites" wiki page?**
• [ ] My code follows the style guidelines of this project
• [ x ] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ x ] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works

[Isotab]

This can be closed, I did a userscript for it and I had to switch to a different selector to add it so I am not sure if it changed or if it only worked by accident the first time