🔖 bumps version to 2.1.2

Merge pull request infinitered#779 from infinitered/build-2.1.0-app

📌 updates reactotron-app lock file

📌 updates app's yarn.lock

📌 updates app yarn.lock

📌 updates lock for app

🔖 2.0.0-beta.9

🔖 bumps to 2.0.0-beta.6