v21.2.16
test(devtools): revive cypress tests (#61972)
refactor(devtools): rearrange main toolbar menu buttons (#62684)
refactor(devtools): add clear button to the directive explorer filter (#64407)
refactor(devtools): visual separation between directives in the property tab (#64222)
fix(devtools): property-view-tree layout (#64343)
test(devtools): write some e2e tests for the transfer state tab (#62843)
refactor(devtools): add a demo resource to the demo app