migrate config away from localStorage; ensure config is properly loaded on access token auth

src/index.tsx

@@ -3,46 +3,15 @@ import React from "react";
 import { createRoot } from "react-dom/client";
 
 import App from "./App";
-import { Config, WellKnownKey, LoadConfig } from "./components/config";
+import { FetchConfig, GetConfig } from "./components/config";
 import { AppContext } from "./AppContext";
 import storage from "./storage";
 
-// load config.json
-let props: Config = {
-  restrictBaseUrl: [],
-  asManagedUsers: [],
-  supportURL: "",
-  menu: [],
-};
-try {
-  const resp = await fetch("config.json");
-  const configJSON = await resp.json();
-  console.log("Loaded config.json", configJSON);
-  props = LoadConfig(configJSON as Config);
-} catch (e) {
-  console.error(e);
-}
-
-// if home_server is set, try to load https://home_server/.well-known/matrix/client
-const homeserver = storage.getItem("home_server");
-if (homeserver) {
-  try {
-    const resp = await fetch(`https://${homeserver}/.well-known/matrix/client`);
-    const configWK = await resp.json();
-    if (!configWK[WellKnownKey]) {
-      console.log(`Loaded https://${homeserver}.well-known/matrix/client, but it doesn't contain ${WellKnownKey} key, skipping`, configWK);
-    } else {
-      console.log(`Loaded https://${homeserver}.well-known/matrix/client`, configWK);
-      props = LoadConfig(configWK[WellKnownKey] as Config);
-    }
-  } catch (e) {
-    console.log(`https://${homeserver}/.well-known/matrix/client not found, skipping`, e);
-  }
-}
+await FetchConfig();
 
 createRoot(document.getElementById("root")).render(
       <React.StrictMode>
-        <AppContext.Provider value={props}>
+        <AppContext.Provider value={GetConfig()}>
           <App />
         </AppContext.Provider>
       </React.StrictMode>