Merge branch 'OZG-7473-save-statistic-fields' into 'main'

...egation-mapping/aggregation-mapping-form.e2e.component.ts

.../aggregation-mapping/aggregation-mapping.e2e.component.ts

...n-e2e/src/components/statistik/statistik.e2e.component.ts

.../main-tests/aggregation-mapping/aggregation-mapping.cy.ts

...n-e2e/src/e2e/main-tests/statistik/statistik-fields.cy.ts

...elper/aggregation-mapping/aggregation-mapping.executor.ts

.../helper/aggregation-mapping/aggregation-mapping.helper.ts

...lper/aggregation-mapping/aggregation-mapping.navigator.ts

...elper/aggregation-mapping/aggregation-mapping.verifier.ts

alfa-client/apps/admin-e2e/src/helper/app.helper.ts

alfa-client/apps/admin-e2e/src/page-objects/main.po.ts

alfa-client/apps/admin-e2e/src/support/cypress-helper.ts

alfa-client/apps/admin/src/app/app.component.spec.ts

alfa-client/apps/admin/src/app/app.component.ts

alfa-client/apps/admin/src/app/app.routes.ts

...ng-form-page/aggregation-mapping-form-page.component.html

...form-page/aggregation-mapping-form-page.component.spec.ts

...ping-form-page/aggregation-mapping-form-page.component.ts

...ng-list-page/aggregation-mapping-list-page.component.html

...list-page/aggregation-mapping-list-page.component.spec.ts