Line break characters around <script> and <style> should be ignored

[maxbarnas]

📝 Provide detailed reproduction steps (if any)

1. Set in Source Editing mode in ckeditor5-html-support/tests/manual/ghs-all-features.html:

<p>
    x
</p>
<script>a</script>
<style>a</style>
<p>
    x
</p>

2. Retrieve the data back.

✔️ Expected result

Output is the same as the input.

❌ Actual result

Notice the extra paragraph with   and <style> inside it:

<p>x</p><script>a</script><p>&nbsp;<style>a</style></p><p>x</p>

[niegowski]

A very similar glitch happens to HTML comments.

[Charuru]

If you fix this can you expose it so that we can set anything to have the fixed behavior and not just style and script?