* Fixed ts errors so build will succeed

* Update packages/grafana-data/src/types/graph.ts

Co-Authored-By: Ryan McKinley <ryantxu@gmail.com>

* Feedback from code review

* Leaving out trivial typing's

* Fix error with color being undefined now.

* fix test with timezone issue

* Fixed test

Co-authored-by: Ryan McKinley <ryantxu@gmail.com>
Co-authored-by: Torkel Ödegaard <torkel@grafana.com>