chore(infrastructure): add esmoduleinterop to tsconfig (#818)

Author: Matt Goo

docs/best-practices.md

@@ -27,9 +27,4 @@ Since `[email protected]` is exporting `default`, we should be importing as such:
 ```ts
 // referenced in https://github.com/basarat/typescript-book/blob/master/docs/project/external-modules.md#default-exportsimports
 import classnames from 'classnames';
-```
-
-In other cases where we import modules that do not use `default`, we should import like:
-```ts
-import * as classnames from 'classnames';
 ```