code refactoring, removed react helmet

frontend/src/atoms/rpc.ts

@@ -6,7 +6,5 @@ export const rpcClientState = selector({
   key: 'rpcClientState',
   get: ({ get }) =>
     new RPCClient(get(rpcHTTPEndpoint), get(rpcWebSocketEndpoint)),
-  set: ({ get }) =>
-    new RPCClient(get(rpcHTTPEndpoint), get(rpcWebSocketEndpoint)),
   dangerouslyAllowMutability: true,
 })

frontend/src/atoms/status.ts

@@ -36,6 +36,7 @@ export const availableDownloadPathsState = selector({
   key: 'availableDownloadPathsState',
   get: async ({ get }) => {
     const res = await get(rpcClientState).directoryTree()
+      .catch(() => ({ result: [] }))
     return res.result
   }
 })