Revert prefers-color-scheme

web/src/components/ThemeToggle/ThemeToggle.tsx

@@ -8,10 +8,7 @@ const DARK_THEME = 'dark'
 
 const ThemeToggle = () => {
   const [theme, setTheme] = useState(
-    (localStorage.getItem('theme') ??
-      window.matchMedia('(prefers-color-scheme: dark)').matches)
-      ? DARK_THEME
-      : LIGHT_THEME
+    localStorage.getItem('theme') ?? LIGHT_THEME
   )
 
   const handleToggle = (e: React.ChangeEvent<HTMLInputElement>) => {