Add padding to the bottom of the sidebar

netbox/templates/base/sidenav.html

@@ -28,7 +28,7 @@
   <div class="sidenav-inner h-100 mb-auto">
 
     {# Collapse #}
-    <div class="collapse sidenav-collapse">
+    <div class="collapse sidenav-collapse pb-4">
 
       {# Nav Items #}
       {% nav %}