put file server onion requests behind a feature flag

js/modules/loki_app_dot_net_api.js

@@ -385,7 +385,7 @@ const serverRequest = async (endpoint, options = {}) => {
     const host = url.host.toLowerCase();
     // log.info('host', host, FILESERVER_HOSTS);
     if (
-      window.lokiFeatureFlags.useOnionRequests &&
+      window.lokiFeatureFlags.useFileOnionRequests &&
       FILESERVER_HOSTS.includes(host)
     ) {
       mode = 'sendViaOnion';

preload.js

@@ -416,6 +416,7 @@ window.lokiFeatureFlags = {
   privateGroupChats: true,
   useSnodeProxy: !process.env.USE_STUBBED_NETWORK,
   useOnionRequests: true,
+  useFileOnionRequests: false,
   onionRequestHops: 1,
 };