UI update 21q1 (#206)

* Refactored start docs

* Changed source of go-bindata #197

* Updated go dep trackers

* Updated yarn dependencies

* Added update step to Makefile

* New auto-generated bindata tests

* Added doc note about make update

* yarn upgrade

* Doc: rename Infura key as "project ID" for clarity

* Set resource class to medium for CircleCI builds

* Use Debian 'stable' release in Docker

* yarn upgrade

* Updated babel plugins, gensync, semver