Pull in optional quirks mode changes

chore(package): update scratch-paint to version 0.2.0-prerelease.2018…

Closes #1949

Fix several minor monitor issues from recent testing

Hide field editors when a modal is shown

Smoke test branch -> Develop

Update scratch-paint to hide font dropdown

This is temporary for the release to master

Publish develop builds to NPM

Update scratch paint

Add missing vector sprites and costumes to libraries

Update scratch-blocks (flyout bottom padding)

Fix monitor scaling, positioning and draggability in fullscreen mode

Specifically in 2.0:
- Monitors cannot be dragged in fullscreen/player
- List monitors cannot be resized, have items added using the button or have their values edited.
- Slider monitors still work.

Don’t load null project id

Replace white rectangle bitmap with empty svg for default backdrop

Only call updateProject to load the project if there is a project id, or it’s the default project id.

Project loader refactor

- better split of hash-parser/project-loader unit tests.

Interact with blocks categories by id instead of by name