Customization Tab Layout in Settings breaks #3523

Describe the Bug

When you go to the settings and insert a long string into the "Custom HTML Head Content", the layout of the page will break.

Steps to Reproduce

1. Go to settings
2. Click on Customization
3. Enter a long text into the "Custom HTML Head Content" input field, until the page layout starts expanding.

Expected Behaviour

The text should start overflowing with a scrollbar in the input field for "Custom HTML Head Content"

Screenshots or Additional Context

Screenshot:
https://cdn.discord.digital/bookstack-bug.png

Browser Details

Chrome 102.0.5005.115

Exact BookStack Version

v22.06

PHP Version

7.4

Hosting Environment

Ubuntu 20.04 VM