Document best practices for handling form submission

[wiverson]

Problem to solve

I'm starting out with Svelte/SvelteKit. Trying to understand the best way to handle form submission processing and switching between pages in SvelteKit. Lots of information on how to build the form and validate, but the demos pretty much just seem to do something like throw the form data into an alert, which isn't terribly helpful.

Intended users

Any new Svelte/SvelteKit user.

User experience goal

A simple set of best practices for how to handle processing form submission. Endpoint? Context store? Something else?

Proposal

I don't have a proposal - just starting out. :)