Claiming namespace JitsoStudio

### Namespace

JitsoStudio

### Ownership

- [x] The namespace is not currently owned on Open VSX (verify by a search on [open-vsx.org](https://open-vsx.org))

### Account Age

- [x] The GitHub ID making this request has at least 12 months of public history

### VS Code Publisher with Repo

- [ ] The namespace is also a publisher account on the VS Code Marketplace (check by browsing https://marketplace.visualstudio.com/publishers/{publisher}) and has an extension published there with a repo specified in its package.json file.

### VS Code Publisher without Repo

- [x] The namespace is also a publisher account on the VS Code Marketplace and does not have published extensions or has published extensions with no GitHub repos.

### Not a VS Code Marketplace Publisher

- [ ] The namespace is not a publisher account on the VS Code Marketplace

### All Other Cases

- [ ] You are unable to provide the inputs required in the three options above. This option will take the longest to process.

### Claim evidence

- **Publisher on VS Code Marketplace:** https://marketplace.visualstudio.com/publishers/JitsoStudio
- **Open VSX User:** JohanTh
- **Extension on Open VSX:** https://open-vsx.org/extension/JitsoStudio/antitask
- **Justification:** I am the creator and author of the Antitask extension and the owner of the JitsoStudio publisher.

Review the namespace details and verify the publisher at the linked VS Code Marketplace URL, then confirm the ownership status on open-vsx.org. Check the provided Open VSX user and Antitask extension evidence; the work is done when the JitsoStudio namespace claim has been validated and processed.

Written by the indexing model from the issue text.