Readd filter store keys

Adds custom storage keys to the filter list again
prevents a problem that appears on minified code

client/src/app/core/ui-services/base-filter-list.service.ts

@@ -149,7 +149,7 @@ export abstract class BaseFilterListService<V extends BaseViewModel> {
     /**
      * The key to access stored valued
      */
-    private storageKey: string;
+    protected abstract readonly storageKey: string;
 
     /**
      * Constructor.
@@ -157,10 +157,7 @@ export abstract class BaseFilterListService<V extends BaseViewModel> {
      * @param name the name of the filter service
      * @param store storage service, to read saved filter variables
      */
-    public constructor(private store: StorageService, private OSStatus: OpenSlidesStatusService) {
-        this.storageKey = this.constructor.name;
-        console.log('storage-key: ', this.storageKey);
-    }
+    public constructor(private store: StorageService, private OSStatus: OpenSlidesStatusService) {}
 
     /**
      * Initializes the filterService.

client/src/app/site/agenda/services/agenda-filter-list.service.ts

@@ -15,6 +15,11 @@ import { ViewItem } from '../models/view-item';
     providedIn: 'root'
 })
 export class AgendaFilterListService extends BaseFilterListService<ViewItem> {
+    /**
+     * set the storage key name
+     */
+    protected storageKey = 'AgendaList';
+
     /**
      * Constructor. Also creates the dynamic filter options
      *

client/src/app/site/assignments/services/assignment-filter.service.ts

@@ -12,6 +12,11 @@ import { AssignmentPhases, ViewAssignment } from '../models/view-assignment';
     providedIn: 'root'
 })
 export class AssignmentFilterListService extends BaseFilterListService<ViewAssignment> {
+    /**
+     * set the storage key name
+     */
+    protected storageKey = 'AssignmentList';
+
     /**
      * Constructor. Activates the phase options subscription
      *

client/src/app/site/motions/services/amendment-filter-list.service.ts

@@ -24,10 +24,15 @@ import { ViewMotion } from '../models/view-motion';
 })
 export class AmendmentFilterListService extends MotionFilterListService {
     /**
-     * Private acessor for an amendment id
+     * Private accessor for an amendment id
      */
     private _parentMotionId: number;
 
+    /**
+     * set the storage key nae
+     */
+    protected storageKey = 'AmendmentList';
+
     /**
      * publicly get an amendment id
      */

client/src/app/site/motions/services/motion-filter-list.service.ts

@@ -34,6 +34,11 @@ interface WorkflowFilterDesc {
     providedIn: 'root'
 })
 export class MotionFilterListService extends BaseFilterListService<ViewMotion> {
+    /**
+     * set the storage key name
+     */
+    protected storageKey = 'MotionList';
+
     /**
      * Listen to the configuration for change in defined/used workflows
      */

client/src/app/site/users/services/user-filter-list.service.ts

@@ -15,6 +15,11 @@ import { ViewUser } from '../models/view-user';
     providedIn: 'root'
 })
 export class UserFilterListService extends BaseFilterListService<ViewUser> {
+    /**
+     * set the storage key name
+     */
+    protected storageKey = 'UserList';
+
     private userGroupFilterOptions: OsFilter = {
         property: 'groups_id',
         label: 'Groups',