update patch notes
bugfix: angular aot appears to not able to import {x as a} from './a'…
use web component for dataset preview
Feat/opacity slider
bugfix menu collapse
fixes https://github.com/HumanBrainProject/interactive-viewer/issues/466
bugfix: plugin state no longer honored
fix https://github.com/HumanBrainProject/interactive-viewer/issues/465
Dev spatial backend for change template
bugfix: url parsing + added test
added test for restoring state
chore: use regionId for querying dataset
