[cli] Add missing node-notifier npm dependency

[ide]

local-cli now depends on the node-notifier package but it wasn't listed in package.json.

Test Plan: Run TravisCI e2e-objc test and see that it is able to launch the CLI successfully.

[pull-bot]

	Warnings
⚠️	🔒 package.json - Changes were made to package.json. This will require a manual import by a Facebook employee.

@facebook-github-bot label Core Team

Attention: @hramos

Generated by 🚫 dangerJS

[facebook-github-bot]

@hramos has imported this pull request. If you are a Facebook employee, you can view this diff on Phabricator.

[elicwhite]

@ide, thanks for the fix.

@hramos, how was this problem able to land and pass our internal build?

[hramos]

I'm not sure I follow. When was the dependency added? Was it in an internal commit or through an external PR?

[rigdern]

@hramos git log -S node-notifier shows that commit c88b2b2 introduced code which uses node-notifier. I don't see a PR associated with this commit so I'm guessing it was an internal commit.