Add ignoreUnread option for VS Code plugin

[danvk]

Fixes(if relevant):

Checks

• [x] Contains Only One Commit(git reset then git commit)
• [x] Build Success(npm run build)
• [x] Lint Success(npm run lint to check, npm run fix to fix)
• [x] File Integrity(git add -A or add rules at .gitignore file)
• [ ] Add Test(if relevant, npm run test to check)
• [ ] Add Demo(if relevant)

I use this option in my project and would like a way to enable it for the VS Code plugin.

[plantain-00]

Released in v2.18.2

[danvk]

Confirmed that this is working. Thanks @plantain-00!