add favicons

src/main.ts

@@ -4,6 +4,12 @@ import '@fortawesome/fontawesome-free/css/all.min.css'
 import App from './App.vue'
 import { setDefaultNotes } from '@/composables/useNotes'
 import { defaultNotes } from '@/utils/defaultNotes'
+import { usePreferredDark, useFavicon } from '@vueuse/core'
+
+const isDark = usePreferredDark()
+const favicon = computed(() => (isDark.value ? '/contexted-white.ico' : '/contexted-black.ico'))
+useFavicon(favicon)
+
 setDefaultNotes(defaultNotes)
 
 createApp(App).mount('#app')