refactor: Moved shared code into shared folder

Squashed commit of the following:

commit bdcc1abac9753790793e4f239d93050d4ec3f635
Author: Erik Tiekstra <erik.tiekstra@arbetsformedlingen.se>
Date:   Wed Jun 30 12:49:30 2021 +0200

    Moved shared code into shared folder

apps/dafa-web/src/app/shared/services/api/avrop-api.service.ts

@@ -1,9 +1,9 @@
 import { Injectable } from '@angular/core';
-import { Deltagare } from '../../pages/avrop/models/Deltagare';
-import { Handledare } from '../../pages/avrop/models/Handledare';
 import { Observable, of } from 'rxjs';
 import { delay } from 'rxjs/operators';
-import { MultiselectFilterOption } from '../../pages/avrop/models/AvropFilterOptions';
+import { MultiselectFilterOption } from '../../../pages/avrop/models/AvropFilterOptions';
+import { Deltagare } from '../../../pages/avrop/models/Deltagare';
+import { Handledare } from '../../../pages/avrop/models/Handledare';
 
 const tempHandledareMock: Handledare[] = [
   { id: '1', fullName: 'Göran Persson' },