Refactor voice page and hooks to use React Query for data fetching

- Updated VoicePage component to utilize useVoiceConnect, useVoiceDisconnect, and useMicTransmit mutations.
- Replaced local state management with React Query's useQuery for voice status, guilds, and channels.
- Removed custom useAsync hook and replaced it with useQuery in useConfig, useStats, useUsers, useChannels, and useMessages hooks.
- Simplified useRecordings and useSpeakers hooks to leverage React Query for data fetching and mutations.
- Removed deprecated use-async hook and related code.
- Enhanced error handling and loading states across various hooks.

services/frontend/src/lib/hooks/use-config.ts

@@ -1,22 +0,0 @@
-import { useEffect, useState } from "react";
-import { configApi } from "@/lib/api";
-import type { AppConfig } from "@/lib/types/guild";
-
-export function useAppConfig() {
-  const [config, setConfig] = useState<AppConfig | null>(null);
-  const [loading, setLoading] = useState(true);
-
-  useEffect(() => {
-    configApi
-      .get()
-      .then((cfg) => {
-        setConfig(cfg);
-      })
-      .catch(() => {
-        // silent — config fetch is not critical
-      })
-      .finally(() => setLoading(false));
-  }, []);
-
-  return { config, loading };
-}