Replace remaining React ARIA components with Compound components (#2576)

* Fix issues detected by Knip

Including cleaning up some unused code and dependencies, using a React hook that we unintentionally stopped using, and also adding some previously undeclared dependencies.

* Replace remaining React ARIA components with Compound components

* fix button position

* disable scrollbars to resolve overlapping button

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Co-authored-by: Timo <toger5@hotmail.de>

src/room/RoomAuthView.tsx

@@ -18,9 +18,9 @@ import { FC, useCallback, useState } from "react";
 import { useLocation } from "react-router-dom";
 import { Trans, useTranslation } from "react-i18next";
 import { logger } from "matrix-js-sdk/src/logger";
+import { Button } from "@vector-im/compound-web";
 
 import styles from "./RoomAuthView.module.css";
-import { Button } from "../button";
 import { Body, Caption, Link, Headline } from "../typography/Typography";
 import { Header, HeaderLogo, LeftNav, RightNav } from "../Header";
 import { FieldRow, InputField, ErrorMessage } from "../input/Input";