Two reasons: 
1. Avoid triggering "connected" event, because the device was already connected
2. It is not good to call `setState` in componentDidMount, which is effectively what it was doing.

Move listeners up to vmListenerHOC, and add listeners for new turbo mode events from scratch-vm#1413

This solves the issue where in both player and editor mode, draggable sprites would not get popped to the front of the draw list.

Call updateToolbox whenever the blocks container updates and is visible so that changes to dynamic menus (e.g. costume renaming) are picked up. Update setLocale to call updateToolbox so that the toolboxRefresh gets re-enabled. This is needed for getting translated toolbox strings like 'Hello' and 'Hmmm...' to stay in sync with language changes.

Remove cruft and add comments to explain how setLocale is called.

In `blocks.jsx` only call setLocale if visible. Depends on `getLocale` being added to VM to know when global locale changed while not visible making the VM out of sync.

Provide a from target id when sharing blocks to another target so that variable conflicts can be resolved.

Fix rename variable bug by always passing additionalVars to the scratch-blocks prompt callback. Let scratch-blocks decide whether or not to use the additional vars based on whether the variable is local or global.

Depends on https://github.com/LLK/scratch-vm/pull/1321

Eliminate warnings and errors due to library item text (name and desctiption) being localized components instead of simply a string. Some are not localized (e.g. LEGO EV3), so either string or component is possible.

This is not yet implemented in the VM, but will be needed when it is.

Allow specifying variables as local vs. global. Pass var names from VM to scratch-blocks for checking for conflicts in all sprites when attempting to create a global var.