Switch statements for declaring reactive pages

[TheBlueOompaLoompa]

Is your feature request related to a problem? Please describe.
I'm trying to create a page with multiple login steps, it would be great if I could just use a switch block instead of multiple if blocks.

Describe the solution you'd like

<script>
  var x = 'first'
</script>
{#switch x}
  {:case 'first'}
    <h1>First</h1>
  {:case 'second}
    <h2>Second</h2>
{/switch}

Describe alternatives you've considered
I have tried svelte client side rendering, but that won't work in the current case because I'm using Sveltekit.

How important is this feature to you?
It would be nice but unnecessary, I know a lot of svelte is about being fast, and sleek. This would make the developer experience a lot faster. I have also heard that switch statements are faster than if statements.

Additional context
In this case I just need to switch between small blocks of HTML, so it wouldn't be too much bigger than normal

[pngwn]

This is a significant enough feature to require an RFC: https://github.com/sveltejs/rfcs

FWIW, I think this would be a useful feature and plan on putting an RFC together at some point.

[TheBlueOompaLoompa]

I made a RFC sveltejs/rfcs#49, you can contribute any changes you may want.