Fix/vite tsconfig setup (#404)

* Use "create-vite"s tsconfig files setup

The previous tsconfig file caused issues with vite throwing "missing identifiers of modules" errors

* Remove unused React imports

Starting with React 17 the nex JSX transform is being used

src/screens/Extensions.tsx

@@ -6,7 +6,7 @@
  * file, You can obtain one at https://mozilla.org/MPL/2.0/.
  */
 
-import React, { useContext, useEffect, useMemo, useRef, useState } from 'react';
+import { useContext, useEffect, useMemo, useRef, useState } from 'react';
 import { fromEvent } from 'file-selector';
 import IconButton from '@mui/material/IconButton';
 import AddIcon from '@mui/icons-material/Add';