Yeah there's a lot of work when you're building an app on top of an existing website. If SG was rebuilt today from the ground up their engineers would factor all this kinda stuff in but because it's legacy it's whole different beast! There's something similar to what you mentioned and it's called a Progressive Web Application (PWA) but that too would require some development before you would be able to use it. Anyways, that's enough geek speak haha 💁‍♂️