feat: add svelte/no-top-level-browser-globals rule

[ota-meshi]

close #1203

---

I have implemented the rule but there are still many test cases missing.

I have a question: #1203 (comment)

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[baseballyama]

I don’t think it’s realistic to detect this kind of pattern, but I’m sharing it just in case.

https://eslint-online-playground.netlify.app/#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

[ota-meshi]

I don’t think it’s realistic to detect this kind of pattern, but I’m sharing it just in case.

<script lang="ts">
  const a = () => {
    console.log(location.href);
  }

  a();
</script>

I think it would be difficult to support that with this rule 😅
It seems necessary to consider whether the declared function is called immediately or not, and if there is an if statement before the function 🤯

[baseballyama]

Awesome!