[FR] Custom fonts

### Description

I've downloaded the Microsoft font package on my system and I see the fonts when using LibreOffice. I was wondering if there was a way also to use them on Appflowy. I guess the essence of my question is if it is possible to use a custom font on AppFlowy since MS fonts aren't native to Linux? Any help here would be much appreciated

### Impact

Users who have their own fonts to be used in AppFlowy

### Additional Context

_No response_