refactor: remove electron-related code

src/components/ThemeToggle/index.tsx

@@ -0,0 +1,46 @@
+import { Button } from '@/components/ui/button'
+import { useTheme } from '@/providers/ThemeProvider'
+import { Moon, Sun, SunMoon } from 'lucide-react'
+import { useTranslation } from 'react-i18next'
+
+export default function ThemeToggle({
+  variant = 'titlebar'
+}: {
+  variant?: 'titlebar' | 'small-screen-titlebar'
+}) {
+  const { t } = useTranslation()
+  const { themeSetting, setThemeSetting } = useTheme()
+
+  return (
+    <>
+      {themeSetting === 'system' ? (
+        <Button
+          variant={variant}
+          size={variant}
+          onClick={() => setThemeSetting('light')}
+          title={t('switch to light theme')}
+        >
+          <SunMoon />
+        </Button>
+      ) : themeSetting === 'light' ? (
+        <Button
+          variant={variant}
+          size={variant}
+          onClick={() => setThemeSetting('dark')}
+          title={t('switch to dark theme')}
+        >
+          <Sun />
+        </Button>
+      ) : (
+        <Button
+          variant={variant}
+          size={variant}
+          onClick={() => setThemeSetting('system')}
+          title={t('switch to system theme')}
+        >
+          <Moon />
+        </Button>
+      )}
+    </>
+  )
+}