Publish `File Nesting Updater` to Open VSX

[Neluji]

Clear and concise description of the problem

Usage of Microsoft marketplace-distributed extensions in non-MS products is theoretically prohibited.

Suggested solution

Publishing it to Open VSX, to be able to use it on other VSCode-likes (VSCodium for example).

Alternative

No response

Additional context

The docs to publish an extension can be found here (even if I assume that you are already aware of it, given that some of your extensions appears there). This process is straightforward and shouldn't take too long. Essentially, you need an authentication token and to execute the ovsx publish command to publish your extension. There's also a doc explaining the whole process with an example GitHub Action workflow.

Validations

• [X] Follow our Code of Conduct
• [X] Read the Contributing Guide.
• [X] Check that there isn't already an issue that request the same feature to avoid creating a duplicate.