fix lint errors

src/components/toolbar/ToolbarButton.tsx

@@ -3,7 +3,7 @@
 
 import { Classes } from '@blueprintjs/core';
 import { mergeProps } from '@react-aria/utils';
-import { AriaButtonProps } from '@react-types/button';
+import type { AriaButtonProps } from '@react-types/button';
 import classNames from 'classnames';
 import React, { useRef } from 'react';
 import { FocusRing, useButton } from 'react-aria';

src/components/toolbar/types.ts

@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: MIT
 // Copyright (c) 2022 The Pybricks Authors
-import { AriaLabelingProps, DOMProps } from '@react-types/shared';
+
+import type { AriaLabelingProps, DOMProps } from '@react-types/shared';
 
 export type ToolbarProps = {
     firstFocusableItemId: string;

src/react-app-env.d.ts

@@ -2,7 +2,6 @@
 // Copyright (c) 2022 The Pybricks Authors
 
 /// <reference types="node" />
-/// <reference types="react" />
 /// <reference types="react-dom" />
 
 declare namespace NodeJS {