[Bug] [next] Legacy Story parameters is being removed in pre-transform

[xeho91]

Found by @paoloricciuti via Discord

Input:

<script context="module">
  import { Story } from "@storybook/addon-svelte-csf";
</script>

<Story
  name="Default"
  parameters={{ 
    sveltekit_experimental: {
      stores: {
        page: {
          data: {
            test: 'passed',
          },
        },
        navigating: {
          route: {
            id: '/storybook',
          },
        },
        updated: true,
      },
    },
  }}
>
  <h1>{"Test"}</h1>
</Story>

Output:

<Story name="Default">
  <h1>{"Test"}</h1>
</Story>

[shilman]

🚀 Issue was released in v5.0.0-next.9 🚀

[shilman]

🚀 Issue was released in v5.0.0-next.9 🚀