Refactor stats endpoint so supports filtering people and make dashboard page utilise it

templates/person_overview.html

@@ -159,9 +159,9 @@
     </div>
 </div>
 
-<div class="hidden" hx-get="{{ url_for('get_stats_for_person', person_id=person_id) }}"
-    hx-include="[name='exercise_id'],[name='min_date'],[name='max_date']" hx-trigger="load" hx-target="#stats"
-    hx-swap="innerHTML">
+<div class="hidden" hx-get="{{ url_for('get_stats') }}"
+    hx-include="[name='exercise_id'],[name='min_date'],[name='max_date']" hx-vals='{"person_id": "{{ person_id }}"}'
+    hx-trigger="load" hx-target="#stats" hx-swap="innerHTML">
 </div>
 
 {% endblock %}