Closes #4650

Allow for both bluetooth and internet connection icons in extensions

Remove most of the GA events

Update scratch-vm to the latest version 🚀

Update scratch-render to the latest version 🚀

Update scratch-paint to the latest version 🚀

Remove focus selecting in slider prompt

Too much traffic, not enough value. Leaving stuff having to do with tips library/tutorial card navigation as well as hardware extension connectivity, as those help us find issues with Scratch.

It is not reliably selecting the input and is making it hard to type into.

Update scratch-vm to the latest version 🚀

chore(package): update scratch-render to version 0.1.0-prerelease.201…

Slider range change with decimal value support

Make the stage color picker work with touch.

A few modifications were made while making this test:
- Change the "defaultMin/Max" to just be called "min/max", and pass the state through to make the inputs a controlled component. It is best to make form elements controlled since it makes it more clear how data flows.
- Force the passed in data to always be of type `number`, and transform it in the constructor to always be of type `string`, and change the onOk to transform it back to a number. With inputs, it is best to be very explicit about data types, and make it clear where you are using strings and where you are using numbers.
- Do not reset the state to `0` when the field is blank, that makes typing into it very hard (only applies after making it a controlled field)
- Use consistent booleans. Since the VM uses `isDiscrete`, change it so we do not use any opposite flags (like `decimal`) for clarity.

Writing tests for this really helped me understand the behavior. If you read through the test descriptions and see anything you did not intend, let me know.

fix(UI): fix cursor property when hovering account nav items

fix(css): fix css value has mixed support warning

Update scratch-svg-renderer to the latest version 🚀

Run pify package through babel loader.

chore(package): update scratch-vm to version 0.2.0-prerelease.2019030…

chore(package): update scratch-blocks to version 0.1.0-prerelease.155…

Closes #4626

chore(package): update scratch-vm to version 0.2.0-prerelease.20190304203619