Review examples usage of LayerManager.goToAnimator

[Beak-man]

Description

As part of #727, it was encountered that we're currently using two related, but ultimately different methods to move the camera to a desired position over the globe: The usual WorldWindow.goTo method and a derivative of it that's attached to the LayerManager, which is external to the SDK.

We should review if there is a justification for NDVI and GeoJSON to be using the LayerManager.goToAnimator.goTo method instead of WorldWindow.goTo, since the former may mislead a student by conveying that using an external LayerManager is required to move the camera, when it seems that the sole use of LayerManager.goToAnimator is to move the camera when the user enters a location in the LayerManager's search box.

Additional Information

Related to #539