Fix linting

src/pages/Settings.tsx

@@ -1,5 +1,5 @@
 import classNames from "classnames";
-import { useCallback, useEffect, useMemo, useRef } from "react";
+import { useCallback, useEffect, useMemo } from "react";
 import { useTranslation } from "react-i18next";
 import { useAsyncFn } from "react-use";