Merge branch 'switch-to-esm-chai' into 'master'

packages/person-select/rollup.config.js

packages/person-select/test/unit.js

packages/provider/package.json

packages/provider/rollup.config.js

packages/provider/test/unit.js

packages/qr-code-scanner/package.json

packages/qr-code-scanner/rollup.config.js

packages/qr-code-scanner/test/unit.js

packages/typescript-example/package.json

packages/typescript-example/rollup.config.js

packages/typescript-example/test/unit.ts

toolkit-showcase/package.json

toolkit-showcase/rollup.config.js

toolkit-showcase/yarn.lock

yarn.lock