refactor(Font): consolidate API layer and update type structure

src/entities/Font/ui/FontVirtualList/FontVirtualList.svelte

@@ -28,11 +28,11 @@ interface Props extends
     >
 {
     /**
-     * Callback for when visible items change
+     * Visible items callback
      */
     onVisibleItemsChange?: (items: UnifiedFont[]) => void;
     /**
-     * Weight of the font
+     * Font weight
      */
     weight: number;
     /**
@@ -69,6 +69,7 @@ function handleInternalVisibleChange(visibleItems: UnifiedFont[]) {
             });
         }
     });
+
     // Auto-register fonts with the manager
     appliedFontsManager.touch(configs);