UX: Fix missing icon when merging selected posts

UX: Fix missing icon when merging selected posts

diff --git a/app/assets/javascripts/discourse/app/templates/components/selected-posts.hbs b/app/assets/javascripts/discourse/app/templates/components/selected-posts.hbs
index 5221b77..48860f8 100644
--- a/app/assets/javascripts/discourse/app/templates/components/selected-posts.hbs
+++ b/app/assets/javascripts/discourse/app/templates/components/selected-posts.hbs
@@ -48,7 +48,7 @@
 {{#if canMergePosts}}
   {{d-button
     action=mergePosts
-    icon="arrows-v"
+    icon="arrows-alt-v"
     label="topic.merge_posts.action"
     class="btn-primary"
   }}

GitHub sha: bd511c00