Feature Request: Search to Add Font to Collection|收藏页面添加搜索功能

[Jiang10086]

Thanks for developing this elegant and useful font tool! That's awesome. I have a simple suggestion on the collection page in settings: now I have 578 font families installed on my computer, so it's difficult to find a certain font to add to collection, so I suggest to adding an search icon to add a certain font by search.