Deleted Comments Allow "Reply" and "React"

🐛 Summary
On the ArcBlock Community activity page (https://community.arcblock.io/earn/activity), deleted comments still allow users to "Reply" or "React" to them. This creates a UI inconsistency and allows interactions with content that should no longer be accessible.
🔁 Steps to Reproduce
- Navigate to:
https://community.arcblock.io/earn/activity - Delete a comment (e.g., via "Delete" button).
- Observe that the "Reply" and "React" buttons remain functional for the deleted comment.
- Attempt to reply or react to the deleted comment.
- Observe that the action is allowed despite the comment being deleted.
📉 Severity
Medium – Impacts user experience and creates confusion about deleted content.
🛠️ Expected Behavior
- Deleted comments should:
- Be visually hidden from the UI.
- Disable "Reply" and "React" buttons.
- Prevent any further interactions (e.g., replies, likes).
🧪 Actual Behavior
- Deleted comments remain visually present or allow interactions like:
- Reply to the comment.
- React (like, dislike) to the comment.