Style tags that were not at top level were missing end attribute

[ehrencrona]

If a style tag was not at the top level, the end property of it was empty. This is because the line element.end = parser.index; was missing for the style case in that changed code.

This fixes sveltejs/language-tools#586 and (very likely) fixes sveltejs/prettier-plugin-svelte#149

Before submitting the PR, please make sure you do the following

• It's really useful if your PR references an issue where it is discussed ahead of time. In many cases, features are absent for a reason. For large changes, please create an RFC: https://github.com/sveltejs/rfcs
• This message body should clearly illustrate what problems it solves.
• Ideally, include a test that fails without this PR but passes with it.

Tests

• Run the tests with npm test and lint the project with npm run lint

[ehrencrona]

before the code change, this was null

[Conduitry]

Good catch, thank you! And now also with less code

[Conduitry]

This has been released, thank you!