[Bug]: Storybook treats context="module" exports in Svelte components as props and creates controls for them

Describe the bug

In the following component, there is one prop prop and one module export moduleExport:

<script lang="ts" context="module">
  export const moduleExport = "this is a variable exported from the module";
</script>

<script lang="ts">
  export let prop = "this is a prop of the component"
</script>

<span>{prop}</span>

The problem is, Storybook shows moduleExport as a prop and creates controls for it. These controls are confusing and don't actually do anything.

To Reproduce

• $ npx sb@next sandbox

• Select Svelte Kit (TS)

• Enter a directory name such as storybook-repro

• $ cd storybook-repro

• Add the following lines to the beginning of src/stories/Button.svelte:

  <script lang="ts" context="module">
    export const moduleExport = "module export";
  </script>
  

• $ yarn

• $ yarn run storybook

• Go to any of the stories under Example/Button in Storybook and see that moduleExport is listed as a prop

System

Environment Info:

  System:
    OS: macOS 13.2.1
    CPU: (8) arm64 Apple M1 Pro
  Binaries:
    Node: 18.12.1 - ~/.nvm/versions/node/v18.12.1/bin/node
    Yarn: 1.22.19 - ~/.nvm/versions/node/v18.12.1/bin/yarn
    npm: 8.19.2 - ~/.nvm/versions/node/v18.12.1/bin/npm
  Browsers:
    Chrome: 111.0.5563.146
    Firefox: 111.0.1
    Safari: 16.3
  npmPackages:
    @storybook/addon-essentials: ^7.0.0-rc.8 => 7.0.0-rc.10 
    @storybook/addon-interactions: ^7.0.0-rc.8 => 7.0.0-rc.10 
    @storybook/addon-links: ^7.0.0-rc.8 => 7.0.0-rc.10 
    @storybook/blocks: ^7.0.0-rc.8 => 7.0.0-rc.10 
    @storybook/svelte: ^7.0.0-rc.8 => 7.0.0-rc.10 
    @storybook/sveltekit: ^7.0.0-rc.8 => 7.0.0-rc.10 
    @storybook/testing-library: ^0.0.14-next.1 => 0.0.14-next.1

Additional context

No response