fix wrong sorting option in acp

public/language/en-GB/admin/settings/post.json

@@ -4,6 +4,7 @@
 	"sorting.oldest-to-newest": "Oldest to Newest",
 	"sorting.newest-to-oldest": "Newest to Oldest",
 	"sorting.most-votes": "Most Votes",
+	"sorting.most-posts": "Most Posts",
 	"sorting.topic-default": "Default Topic Sorting",
 	"restrictions": "Posting Restrictions",
 	"restrictions.post-queue": "Enable post queue",

src/views/admin/settings/post.tpl

@@ -17,7 +17,7 @@
 				<select class="form-control" data-field="categoryTopicSort">
 					<option value="oldest_to_newest">[[admin/settings/post:sorting.oldest-to-newest]]</option>
 					<option value="newest_to_oldest">[[admin/settings/post:sorting.newest-to-oldest]]</option>
-					<option value="most_votes">[[admin/settings/post:sorting.most-votes]]</option>
+					<option value="most_posts">[[admin/settings/post:sorting.most-posts]]</option>
 				</select>
 			</div>
 		</form>