fix: support object based headers

[alvarosabu]

Fixes storyblok/storyblok-cli#107

Pull request type

Jira Link: INT-

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Other (please describe):

How to test this PR

• Run the vanilla playground

What is the new behavior?

headers property now supports both object based headers or new Headers

const headers = new Headers()
headers.append('Awiwi', 'Awiwi')
const headers2 = {
  'Awiwi': 'Awiwi'
}
// Both should work
// 2. Initialize the client with the preview token
// from your space dashboard at https://app.storyblok.com
const Storyblok = new StoryblokClient({
  accessToken: import.meta.env.VITE_ACCESS_TOKEN as string,
  headers,
})

Other information

[Edo-San]

LGTM 👌

[github-actions]

🎉 This PR is included in version 6.9.1 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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