`svelte/valid-prop-names-in-kit-pages` should handle `form` props also.

[baseballyama]

Before You File a Bug Report Please Confirm You Have Done The Following...

• I have tried restarting my IDE and the issue persists.
• I have updated to the latest version of the packages.

What version of ESLint are you using?

8.32.0

What version of eslint-plugin-svelte are you using?

2.14.1

What did you do?

I defined form props, and I got disallow props other than data or errors in Svelte Kit page components. error.

<script lang="ts">
  import type { PageData, ActionData } from './$types';
  export let form: ActionData;
</script>

What did you expect to happen?

Do error at all.

What actually happened?

disallow props other than data or errors in Svelte Kit page components. error came.

Link to GitHub Repo with Minimal Reproducible Example

We can reproduce this on REPL.
https://ota-meshi.github.io/eslint-plugin-svelte/rules/valid-prop-names-in-kit-pages/

Additional comments

When I read https://kit.svelte.dev/docs/form-actions#anatomy-of-an-action , I realized this specification.