added liquid glass theme

src/main.tsx

@@ -4,6 +4,10 @@ import './index.css'
 import App from './App.tsx'
 import { listenForegroundMessages } from './hooks/useReminder'
 
+// Apply saved theme immediately to avoid flash
+const savedTheme = localStorage.getItem('gj-theme') || 'light'
+document.documentElement.setAttribute('data-theme', savedTheme)
+
 if ('serviceWorker' in navigator) {
   window.addEventListener('load', () => {
     navigator.serviceWorker.register('/sw.js')