Move "RequestManager" in sub folder

src/components/library/UpdateChecker.tsx

@@ -14,7 +14,7 @@ import { Box } from '@mui/material';
 import Typography from '@mui/material/Typography';
 import { useTranslation } from 'react-i18next';
 import { IUpdateStatus } from '@/typings';
-import requestManager from '@/lib/RequestManager';
+import requestManager from '@/lib/requests/RequestManager.ts';
 import makeToast from '@/components/util/Toast';
 
 interface IProgressProps {

src/components/library/useSubscription.ts

@@ -7,7 +7,7 @@
  */
 
 import { useEffect, useState } from 'react';
-import requestManager from '@/lib/RequestManager';
+import requestManager from '@/lib/requests/RequestManager.ts';
 
 const useSubscription = <T>(path: string, callback?: (newValue: T) => boolean | void) => {
     const [state, setState] = useState<T | undefined>();