💄 Optimize post metadata

lib/screens/posts/post_category_detail.dart

@@ -237,7 +237,7 @@ class PostCategoryDetailScreen extends HookConsumerWidget {
                         loading: () => ResponseLoadingWidget(),
                       ),
                     ),
-                  ),
+                  ).padding(horizontal: 8),
                 ),
               ),
             const SliverGap(4),

lib/screens/posts/post_detail.dart

@@ -289,7 +289,7 @@ class PostActionButtons extends HookConsumerWidget {
             builder: (context) => PostAwardHistorySheet(postId: post.id),
           );
         },
-        icon: const Icon(Symbols.star),
+        icon: const Icon(Symbols.emoji_events),
         label:
             post.awardedScore > 0
                 ? Text('${formatScore(post.awardedScore)} pts')