simplify: use jinja macro

templates/stats_table.html

@@ -1,3 +1,4 @@
+{% macro stats_list(stats, show_rating) %}
 <!-- Table for statistics of a variant -->
 <div class="history-bullets">
     <ul class="stat-list">
@@ -48,4 +49,5 @@
             {{stats.average_moves}}
         </li>
     </ul>
-</div>
+</div>
+{% endmacro %}}

templates/variant.html

@@ -1,4 +1,5 @@
 {% extends "layout.html" %}
+{% from "stats_table.html" import stats_list %}
 
 {% block navbar %}
 <nav class="navbar navbar-expand-lg navbar-light bg-light">
@@ -31,25 +32,21 @@
             <h3>
                 League Statistics for {{variant_name}}
             </h3>
-            {% with stats=variant_stats, show_rating=False %}
-                {% include "stats_table.html" %}
-            {% endwith %}
+            {{ stats_list(variant_stats, False) }}
         </div>
     </div>
 
-    {% for num_players, stats in variant_stats_by_player.items() %}
+    {% for num_players, num_player_stats in variant_stats_by_player.items() %}
     <div class="tab-pane fade" id="stats-{{num_players}}p">
         <div class="container my-5">
             <h3>
                 League Statistics for {{variant_name}} - {{num_players}} Players
             </h3>
-            {% with show_rating=True %}
-                {% include "stats_table.html" %}
-            {% endwith %}
+            {{ stats_list(num_player_stats, True) }}
             <h4>
                 List of Played Games
             </h4>
-            {% if stats.games_played == 0 %}
+            {% if num_player_stats.games_played == 0 %}
             There have been no games played on this variant with {{num_players}} players so far.
             {% else %}
             <div id="table-{{num_players}}p"></div>