Revert "Client config not render blocking (#12300)" (#12302)

This reverts commit 4ce7fc6987, to take
more time to address PR comments

packages/twenty-front/src/modules/client-config/hooks/useClientConfig.ts

@@ -1,43 +0,0 @@
-import { useCallback, useState } from 'react';
-import { ClientConfig } from '~/generated/graphql';
-import { getClientConfig } from '../utils/clientConfigUtils';
-
-interface UseClientConfigResult {
-  data: { clientConfig: ClientConfig } | undefined;
-  loading: boolean;
-  error: Error | undefined;
-  fetchClientConfig: () => Promise<void>;
-  refetchClientConfig: () => Promise<void>;
-}
-
-export const useClientConfig = (): UseClientConfigResult => {
-  const [data, setData] = useState<{ clientConfig: ClientConfig } | undefined>(
-    undefined,
-  );
-  const [loading, setLoading] = useState<boolean>(false);
-  const [error, setError] = useState<Error | undefined>(undefined);
-
-  const fetchClientConfig = useCallback(async () => {
-    setLoading(true);
-    setError(undefined);
-
-    try {
-      const clientConfig = await getClientConfig();
-      setData({ clientConfig });
-    } catch (err) {
-      setError(
-        err instanceof Error ? err : new Error('Failed to fetch client config'),
-      );
-    } finally {
-      setLoading(false);
-    }
-  }, []);
-
-  return {
-    data,
-    loading,
-    error,
-    fetchClientConfig,
-    refetchClientConfig: fetchClientConfig,
-  };
-};