security: access control for particles (#169)

* setup firebase custom token

* docs

* docs

* feat: allow admin removing members from a network

* fix: properly handle fallback avatar and names

This is especially helpful in the case of members who were removed from
a network

js/src/firebase.ts

@@ -1,9 +1,12 @@
 import { initializeApp } from 'firebase/app';
+import { getAuth } from "firebase/auth";
 import { getFirestore } from "firebase/firestore";
 import { appConfig } from "@/config/env";
 
 export const firebaseApp = initializeApp(appConfig.firebase);
 
+export const firebaseAuth = getAuth(firebaseApp);
+
 export const firestoreDb = getFirestore(firebaseApp);
 // simplifying setup to debug production issues
 // export const firestoreDb = initializeFirestore(firebaseApp,