SnackPlayers do not load on sidebar navigation

[Simek]

1. Enter https://reactnative-v2.netlify.app/docs/height-and-width,
2. Navigate to other page using left sidebar,
3. Go back to the previous page using left sidebar.

Preview

[Simek]

Refs #4

[slorber]

Should be fixed through custom docusaurus integration code: #31 (comment)