feat: add IPv4 address space graph with interactive tooltip

app/templates/base.html

@@ -35,6 +35,11 @@
           class="{{ 'active' if request.path == '/whitelist' }}"
           >Whitelist</a
         >
+        <a
+          href="/graph"
+          class="{{ 'active' if request.path == '/graph' }}"
+          >Graph</a
+        >
       </nav>
     </header>
     <main class="container">{% block content %}{% endblock %}</main>