C: Fix popup scroll bar in Firefox

[JohnyP36]

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Prerequisites

• [x] I've read the Code of Conduct and the Contributing Guidelines
• [x] This is more than one or two issue(s)
• Otherwise open a new issue
• [x] I performed a cursory search of the issue tracker to avoid opening a duplicate issue
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• [x] I tried to reproduce the issue when...
• [ ] Other webextensions related to Youtube are disabled
• [ ] using a new, unmodified browser profile
• [x] I am running the latest version of the extension

Describe the issue

As the screenshots shows, after the latest update there is a scroll bar visible in the popup. This should not be the case.

Screenshot(s)

Screenshot(s)


Browser & Extension version

| Browser name & version | Extension Version | Operating System | | :--- | :---: | ---: | | \`**Firefox** 114\` | \`_**2.0.7.2**_\`| \`**Windows 10**, 22H2\` | #### Notes

Removing all the margins to create color background, us display: block;.