Fixes #2493 No need to dual boot `AppComponent` and `ProvidersComponent` only to ensure that we could demo optional injection; instead just inject null for the `@Optional` constructor parameter type. No prose is affected by these changes.
Fixes #2493 No need to dual boot `AppComponent` and `ProvidersComponent` only to ensure that we could demo optional injection; instead just inject null for the `@Optional` constructor parameter type. No prose is affected by these changes.