Add auto updater to the launcher

src/app/update/checking/page.tsx

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+'use client'
+
+export default function UpdateCheckingPage () {
+  return <p className='text-5xl text-center'>Checking for updates</p>
+}

src/app/update/layout.tsx

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+'use client'
+
+import '@/styles/globals.css'
+import { platform } from '@tauri-apps/plugin-os'
+import { Roboto } from 'next/font/google'
+import { useEffect, useState } from 'react'
+
+const roboto = Roboto({
+  subsets: ['latin']
+})
+
+export default function RootLayout ({
+  children
+}: {
+  children: React.ReactNode
+}) {
+  const [platformName, setPlatformName] = useState<string | null>(null)
+
+  useEffect(() => {
+    setTimeout(() => setPlatformName(platform()), 0)
+  }, [])
+
+  return (
+    <>
+      <html lang='en' className={roboto.className}>
+        <body className='dark-theme'>
+          <div
+            className='relative z-2 w-screen border-b border-b-(--col3) h-8.25 bg-(--col1)'
+            hidden={platformName != 'windows'}
+          />
+          <div
+            className={`w-screen ${
+              platformName == 'windows' ? 'h-[calc(100vh-64px)]' : 'h-screen'
+            } flex items-center justify-center`}
+          >
+            {children}
+          </div>
+        </body>
+      </html>
+    </>
+  )
+}

src/app/update/updating/page.tsx

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+'use client'
+
+export default function UpdateCheckingPage () {
+  return <p className='text-5xl text-center'>Updating launcher</p>
+}