bugfix: spatial data undefined
ui: region placeholder
fix regression: conn browser

* 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

bugfix: reset region select on parc toggle
bugfix: extra layer selector now populates crucial info
chore: reenable removing of extra layer/region

bugfix: touch interface side panel does not scroll
bugfix: speed dail pointer evts when hidden
bugfix: cluttered signin panel in small form factor
chore: remove console logs

buggy behavoiur: on double tap, the browser zooms out.

* chore: reenabled unit tests

* trigger travis

* bugfix: backend tests

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

bugfix: single dataset component kg connections

sometimes does not show the corresponding panel

refactor: removed unused classes
chore: improved mobile UI

updated doc

bugfix ui issues
refactor store

Co-authored-by: fsdavid <daviti1@mail.com>
Co-authored-by: Xiao Gui <xgui3783@gmail.com>

Co-authored-by: fsdavid <daviti1@mail.com>

chore: fixed splash screen
chore: added specs to be filled later