navigator: also track comments visible in viewport (#2482)

Author: Soxasora

components/use-comments-navigator.js

@@ -62,10 +62,6 @@ export function useCommentsNavigator () {
       window.requestAnimationFrame(() => {
         if (!commentRef?.current || !commentRef.current.isConnected) return
 
-        // don't track this new comment if it's visible in the viewport
-        const rect = commentRef.current.getBoundingClientRect()
-        if (rect.top >= 0 && rect.bottom <= window.innerHeight) return
-
         // dedupe
         const existing = commentRefs.current.some(item => item.ref.current === commentRef.current)
         if (existing) return