[Bug]: BrowserView.webContents can be null, but typescript types are incorrect

[Juice10]

Preflight Checklist

• I have read the Contributing Guidelines for this project.
• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a bug report that matches the one I want to file, without success.

Electron Version

27.1.0

What operating system are you using?

macOS

Operating System Version

macOS Sonoma 14.1.1 (23B81)

What arch are you using?

arm64 (including Apple Silicon)

Last Known Working Electron version

No response

Expected Behavior

Since this PR allows BrowserView.webContents to be null, I would expect the BrowserView typescript types to be something like this:

class BrowserView {

    // ...    

    /**
     * A `WebContents` object owned by this view.
     *
     * @experimental
     */
    webContents: WebContents | null;
  }

Actual Behavior

But in reality this is what it is.

class BrowserView {

    // ...    

    /**
     * A `WebContents` object owned by this view.
     *
     * @experimental
     */
    webContents: WebContents;
  }

Testcase Gist URL

https://gist.github.com/Juice10/09c54147930f951c4d3146b3443664b1

Additional Information

No response

[electron-issue-triage]

This issue has been automatically marked as stale. If this issue is still affecting you, please leave any comment (for example, "bump"), and we'll keep it open. If you have any new additional information—in particular, if this is still reproducible in the latest version of Electron or in the beta—please include it with your comment!

[Juice10]

I still need to finish this, it's on my todo list