feat(post): clicking "+" button next to "omitted replies" message shows all replies

src/views/post/post.module.css

@@ -179,14 +179,13 @@
   color: var(--post-mobile-abbr-text-color);
 }
 
-.postDesktop .summary .expandButtonWrapper {
+.postDesktop .summary .omittedRepliesButtonWrapper {
   position: absolute;
   top: 8px;
   left: 2px;
 }
 
-.postDesktop .summary .expandButton {
-  background-image: var(--post-replies-expand-button-background-image);
+.postDesktop .summary .omittedRepliesButtonWrapper {
   background-repeat: no-repeat;
   background-position: center;
   width: 18px;
@@ -196,6 +195,14 @@
   cursor: pointer;
 }
 
+.postDesktop .summary .hideOmittedReplies {
+  background-image: var(--post-hide-button-background-image);
+}
+
+.postDesktop .summary .showOmittedReplies {
+  background-image: var(--post-unhide-button-background-image);
+}
+
 .postDesktop .summary a {
   color: var(--post-link-text-color);
   text-decoration: var(--post-content-link-text-decoration);

src/views/post/post.tsx

@@ -17,6 +17,7 @@ export interface PostProps {
   index?: number;
   isHidden?: boolean;
   post?: any;
+  postReplyCount?: number;
   reply?: any;
   roles?: Role[];
   showAllReplies?: boolean;