fix typing (#79)

* fix type

* fix type

* rm this

* fix

Author: patricklx

ember-routable-component/src/index.ts

@@ -55,8 +55,9 @@ export default function RoutableComponentRoute(Component: any) {
   };
 }
 
-export class RoutableComponent<T = unknown> extends Component<
-  GetSignature<T>
-> {}
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+export interface RoutableComponent<T = unknown> {}
+// eslint-disable-next-line @typescript-eslint/no-unsafe-declaration-merging
+export class RoutableComponent<T> extends Component<GetSignature<T>> {}
 
 export type RTOC<T> = TemplateOnlyComponent<GetSignature<T>>;

test-app/app/templates/application.hbs

@@ -1,5 +1,3 @@
-{{page-title "TestApp"}}
-
 <h2 id="title">Welcome to Ember</h2>
 
 {{outlet}}