v21.2.19
refactor(devtools): add a demo resource to the demo app
fix(devtools): message bus URI conflict between dev and prod apps
feat(devtools): use router state for active route detection
refactor(devtools): prepare codebase for migration to angular/angular repo
ci: reformat files
refactor(devtools): use `whenStable` instead of `detectChanges`
refactor: various build and import specificer fixes for strict deps (#63323)