feat: make miniplan a PWA

public/src/main.ts

@@ -4,6 +4,19 @@ import { createApp } from 'vue'
 import App from './App.vue'
 import router from './router'
 
+import { registerSW } from 'virtual:pwa-register'
+
+registerSW({
+  onNeedRefresh() {
+    if (confirm('New content available. Reload?')) {
+      window.location.reload()
+    }
+  },
+  onOfflineReady() {
+    console.log('App ready to work offline')
+  }
+})
+
 const app = createApp(App)
 
 app.use(router)