Making default value as javascript from auto

[parthiv360]

Changes Overview

Issue: #5307

Implementation Approach

They have been rendering auto in the null value for now. Changing the default value to javascript wont help us as auto was hard coded. So I changed that to javascript

Testing Done

Verification Steps

Additional Notes

Checklist

• I have created a changeset for this PR if necessary.
• My changes do not break the library.
• I have added tests where applicable.
• I have followed the project guidelines.
• I have fixed any lint issues.

Related Issues

[changeset-bot]

⚠️ No Changeset found

Latest commit: 0550b63

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[netlify]

✅ Deploy Preview for tiptap-embed ready!

Name	Link
🔨 Latest commit	0550b63
🔍 Latest deploy log	https://app.netlify.com/sites/tiptap-embed/deploys/66a5f53d51b7ba0008834141
😎 Deploy Preview	https://deploy-preview-5404--tiptap-embed.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[AbhayVAshokan]

@parthiv360 You have modified the demos folder to make javascript as the default language. This change does not impact the extension-code-block-lowlight package, and hence it does not solve the issue itself. Please revert these two changes.

The issue discusses how the defaultLanguage prop is not functional.

[parthiv360]

Okay , I will make necessary changes.

[nperez0111]

Closing in favor of #5406