v21.2.19
refactor(devtools): use `whenStable` instead of `detectChanges`
test(devtools): fix and update flaky component-tree tests
test: remove duplicate tests
refactor(devtools): Add a new childSignalProp DebugSignalGraphNode kind to represent a signal being passed to a child component as a prop.
fix(devtools): fix incorrect logic in destroy function for ChromeMessageBus