feat: implement login auth for all

also show the username underneath the logo

src/Network.tsx

@@ -43,16 +43,6 @@ export const GraphComponent = () => {
   const [popularity, setPopularity] = useState(false);
   const [mutuality, setMutuality] = useState(false);
 
-  const logo = document.getElementById("logo");
-  if (logo) {
-    logo.className = "logo networkroute";
-  }
-  const footer = document.getElementsByTagName("footer");
-  if (footer) {
-    footer.length &&
-      ((footer.item(0) as HTMLElement).className = "fixed-footer");
-  }
-
   async function loadData() {
     setLoading(true);
     await apiAuth("analysis/graph_json", null)