chore: remove unused comp
chore: reworked screenshot cmp

* feat: use region related components inherit randomized colour
bugfix: Explore btn text colour
chore: reworked threshold for triggering darkmode

* feat: reworked contributor name display

* chore: use short name for version selector

* chore: update help page info

* chore: moved atlas selector to top right
chore: reworked viewer status panel position
refactor: separate overlay from nehuba container

* lint: clean up

chore: rearrange signin icons
chore: sort atlas

* bugfix: unit test on nehubaContainer.component.ts
chore: distinguish background in region sidebar menu
chore: typing for injection tokens
ui: move atlas selector to top right
chore+refactor: clean ng viewer store helper
chore+refactor: turn const into enums
chore+refactor: viewerState.store
refactor: nehubaViewerUnit into nehubaModule
refactor: databrowser feature store -> separate module for unit tests

* chore: region directive

* chore: fixlint
chore: travis ci test build

feat: added info btn on atlas layer
chore: moved & simplified status card

chore: fixed draggable dataset preview

feat: disable hover context menu
chore: remove unneeded fn call

chore: moved all menu icons to material btns