feat(fonts): 后端字体命令 fonts_get_system_fonts 及 ui_font/mono_font 设置字段

apps/app/src/main.rs

@@ -947,6 +947,7 @@ fn main() {
         .plugin(api::datapacks::init())
         .plugin(api::drop::init())
         .plugin(api::files::init())
+        .plugin(api::fonts::init())
         .plugin(api::friends::init())
         .plugin(api::worlds::init())
         .plugin(api::terracotta::init())