Refactor post action layout in ThreadedPost component

- Updated the layout of post action buttons to align them to the right, improving the visual structure of the component.
- Removed the mentions display section to streamline the interface and focus on action buttons.

These changes enhance the usability and clarity of the ThreadedPost component within the NostrFeed module.

src/modules/nostr-feed/components/ThreadedPost.vue

@@ -190,18 +190,7 @@ function getRideshareType(post: FeedPost): string {
 
         <!-- Post Actions (hidden when collapsed) -->
         <div v-if="!isCollapsed" class="mt-2 pt-2 border-t">
-          <div class="flex items-center justify-between">
-            <!-- Mentions -->
-            <div v-if="post.mentions.length > 0" class="flex items-center gap-1 text-xs text-muted-foreground">
-              <span>Mentions:</span>
-              <span v-for="mention in post.mentions.slice(0, 2)" :key="mention" class="font-mono">
-                {{ mention.slice(0, 6) }}...
-              </span>
-              <span v-if="post.mentions.length > 2" class="text-muted-foreground">
-                +{{ post.mentions.length - 2 }} more
-              </span>
-            </div>
-
+          <div class="flex items-center justify-end">
             <!-- Action Buttons -->
             <div class="flex items-center gap-0.5">
               <Button