Enhance index.html and JavaScript for improved flavor statistics display

- Updated index.html to include additional flavor statistics with dynamic data binding for second and third common flavors.
- Refactored JavaScript functions to handle multiple elements for flavor statistics, ensuring accurate updates and removal of loading animations.
- Improved user experience by providing clearer visual representation of flavor data on the dashboard.

watcher_visio/settings.py

@@ -69,6 +69,9 @@ MIDDLEWARE = [
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
 ]
 
+# COOP ignored on non-HTTPS / non-localhost; disable to avoid console warning
+SECURE_CROSS_ORIGIN_OPENER_POLICY = None
+
 ROOT_URLCONF = 'watcher_visio.urls'
 
 TEMPLATES = [