feat(home): play the white -> background fade only once

NOTE: it's not correctly done, i'm using app state for that, i might move to intro but it's fine for now

app/stores/home.ts

@@ -25,6 +25,9 @@ export const useHomeStore = defineStore("home", {
       const timeline = gsap.timeline({
         onComplete: () => {
           this.isIntro = false;
+          
+          const app = useAppStore();
+          app.homeIntroPlayed = true;
         },
       });