refactor: use React.JSX rather than global JSX (#93)

apps/documentation/src/components/navbar/actions.tsx

@@ -1,8 +1,10 @@
+import type { JSX } from 'react'
 import { Flex, Button, ActionIcon, Group } from '@mantine/core'
 import { IconBrandGithub, IconBook, IconBrandX } from '@tabler/icons-react'
-import ThemeBtn from '../theme-btn'
 import { Link } from 'tuono'
 
+import ThemeBtn from '../theme-btn'
+
 export default function Actions(): JSX.Element {
   return (
     <Flex gap={8}>

apps/documentation/src/components/navbar/navbar.tsx

@@ -1,5 +1,7 @@
+import type { JSX } from 'react'
 import { AppShell, Burger, Button, Flex } from '@mantine/core'
 import { Link, useRouter } from 'tuono'
+
 import Actions from './actions'
 
 interface NavbarProps {