feat(proxy_server.py): show admin global spend as time series data

ui/litellm-dashboard/src/components/leftnav.tsx

@@ -0,0 +1,32 @@
+import { Layout, Menu } from "antd";
+import Link from "next/link";
+
+const { Sider } = Layout;
+
+// Define the props type
+interface SidebarProps {
+  setPage: React.Dispatch<React.SetStateAction<string>>;
+}
+
+const Sidebar: React.FC<SidebarProps> = ({ setPage }) => {
+  return (
+    <Layout style={{ minHeight: "100vh", maxWidth: "120px" }}>
+      <Sider width={120}>
+        <Menu
+          mode="inline"
+          defaultSelectedKeys={["1"]}
+          style={{ height: "100%", borderRight: 0 }}
+        >
+          <Menu.Item key="1" onClick={() => setPage("api-keys")}>
+            API Keys
+          </Menu.Item>
+          <Menu.Item key="2" onClick={() => setPage("usage")}>
+            Usage
+          </Menu.Item>
+        </Menu>
+      </Sider>
+    </Layout>
+  );
+};
+
+export default Sidebar;