removed deprecated react-router-dom, as all falls within react-router now

src/app/pages/auth/register/Register.tsx

@@ -1,6 +1,6 @@
 import React, { useMemo } from 'react';
 import { Box, Text, color } from 'folds';
-import { Link, useSearchParams } from 'react-router-dom';
+import { Link, useSearchParams } from 'react-router';
 import { SSOAction } from 'matrix-js-sdk';
 import { useAuthServer } from '../../../hooks/useAuthServer';
 import { RegisterFlowStatus, useAuthFlows } from '../../../hooks/useAuthFlows';