Format history.ecr

src/invidious/views/history.ecr

@@ -26,7 +26,7 @@ var watched_data = {
 <script src="/js/watched_widget.js"></script>
 
 <div class="pure-g">
-<% watched.each_slice(4) do |slice| %>
+    <% watched.each_slice(4) do |slice| %>
             <% slice.each do |item| %>
                 <div class="pure-u-1 pure-u-md-1-4">
                     <div class="h-box">
@@ -51,7 +51,7 @@ var watched_data = {
                     </div>
                 </div>
             <% end %>
-<% end %>
+    <% end %>
 </div>
 
 <div class="pure-g h-box">