feat: add remove fonts to facade

[kenny-not-dead]

close #xxx

It's clear that your project is popular and used worldwide. Each country has its own linguistic peculiarities, so I would suggest having the most flexible font settings.
For example, out of 15 fonts currently available, only 4 is used most often in my country, and most of the existing ones cannot be used.

Considering the project offers a wide range of customization options for most features, it seems like this wouldn't be a bad idea. I understand that your goal was to prevent the deletion of default fonts, but they could likely be customized by some of your users.

up to you

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[jikkai]

It seems a bit strange to dynamically delete fonts through the facade API. I assume what you actually need is to remove those built-in "useless" Chinese fonts :)
If that’s the case, allowing a custom font list to completely override the built-in one would be a more appropriate implementation.

[jikkai]

I have opened a new PR that extends the customFontFamily configuration, allowing users to completely override the built-in font list. Does this meet your requirements? #6375

[kenny-not-dead]

Thanks a lot, it's great)