fix linting issues

src/app/shared/object-list/selectable-list/selectable-list.reducer.ts

@@ -12,7 +12,7 @@ import { hasNoValue } from '../../empty.util';
 /**
  * Represents the state of all selectable lists in the store
  */
-export type SelectableListsState = {
+export interface SelectableListsState {
   [id: string]: SelectableListState;
 }
 
@@ -97,7 +97,6 @@ function clearSelection(id: string) {
   return { id: id, selection: [] };
 }
 
-
 function isObjectInSelection(selection: ListableObject[], object: ListableObject) {
   return selection.findIndex((selected) => selected.equals(object)) >= 0
 }