Update blocks and l10n

reduce project state machine example image file size

Project state diagram

Revert "Update dependencies"

This is to remove the latest svg-renderer change, "add rounded edges to gradient strokes", because we would like to come up with a more comprehensive testing plan before adding it.

Greenkeeper/mkdirp 1.0.3

Greenkeeper/chromedriver 80.0.0

Update dependencies

Closes #5335

refactor SB* file uploader into top-level HOC

Greenkeeper/scratch paint 0.2.0 prerelease.20200204155336

Closes #5405

Greenkeeper/scratch paint 0.2.0 prerelease.20200129174741

Update scratch-blocks to the latest version 

Closes #5401

Update scratch-l10n to the latest version 

Update scratch-render to the latest version 

draft of refactor to make custom confirm modal work for upload; need to further edit sb-file-uploader

Add support for custom confirm modal to sb-file-uploader

Show custom confirm modal when confirming project upload

got custom upload refactor of file upload working, and tested failure case

cleaned up debug code, make project file upload work

simplified logic around canceling file upload

removed old sb-file-uploader.jsx; fixed linter errors

reverted two components to use old strings, not shared

(can do that refactor another time)

removed unnecessary confirm container

removed stray comment

moved, updated sb file uploader tests, related project state tests

removed custom modal, to reduce scope of changes

sb file uploader test uses intl