hotfix: newComments deduplication ID mismatch, filter null comments from freshNewComments

Author: Soxasora

components/show-new-comments.js

@@ -20,7 +20,7 @@ function prepareComments (client, newComments) {
       }
 
       return fragment
-    })
+    }).filter(Boolean)
 
     // count the total number of comments including nested comments
     let ncomments = data.ncomments + freshNewComments.length

components/use-live-comments.js

@@ -110,7 +110,7 @@ function mergeNewComment (item, newComment) {
   const existingComments = item.comments?.comments || []
 
   // is the incoming new comment already in item's new comments or existing comments?
-  if (existingNewComments.some(c => c.id === newComment.id) || existingComments.some(c => c.id === newComment.id)) {
+  if (existingNewComments.includes(newComment.id) || existingComments.some(c => c.id === newComment.id)) {
     return item
   }