Fixed lint errors and add lint fix script

src/app/core/shared/dspace-object.model.ts

@@ -181,7 +181,7 @@ export class DSpaceObject extends ListableObject implements CacheableObject {
   /**
    * Method that returns as which type of object this object should be rendered
    */
-  getRenderTypes(): Array<string | GenericConstructor<ListableObject>> {
+  getRenderTypes(): (string | GenericConstructor<ListableObject>)[] {
     return [this.constructor as GenericConstructor<ListableObject>];
   }