Abstract form action logic

[bbtgnn]

Many form actions share the same structure:

const data = await request.formData();
const form = await superValidate(data, registerSchema);

if (!form.valid) {
    return fail(400, { form });
}
try {
    // Actual action: ...
} catch (error) {
    return fail(400, { form });
}

// Optional redirect: throw redirect(302, paths.register.thanks);

Imo, it would be super cool to have a function that abstracts all this stuff