client side routing?

[amitu]

https://docs.rs/leptos_router/latest/leptos_router/ etc are becoming common place. We can add some kernel components for routing. Not sure if I like the "whole site is just a single tree" view of things tho. What is the utility of trying to save re-rendering common areas like header and footer? After all they may also contain elements that will change when routes change. Why not let browser do its thing, and we get out of the way?