Custom code fonts and other options not working

First of all, clicking the UI buttons to change options doesn't seem to do anything at all, I have to manually change the 0s to 1s in the code.

Then, in order to actually change the font, I have to add the classes .react-code-text and .comment-body pre to the custom code font styling. .blob-code-inner doesn't seem to reference anything at all. This may be the case with the other options as well, but I'm not even sure what they're supposed to do, so I can't tell if they're changing anything or not.

首先复现 UI 按钮交互，并检查提到的选择器：.react-code-text、.comment-body pre 和 .blob-code-inner。跟踪选项保持不变的原因，并确定自定义代码字体应影响哪些选择器；当控件能够直观地改变选项，并且字体样式无需手动将 0s 编辑为 1s 即可正常工作时，即表示完成。

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