OZG-73743 rename statistik to aggregation-mapping

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

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

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

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

alfa-client/libs/admin/aggregation-mapping/.eslintrc.json

alfa-client/libs/admin/aggregation-mapping/README.md

alfa-client/libs/admin/aggregation-mapping/jest.config.ts

alfa-client/libs/admin/aggregation-mapping/project.json

alfa-client/libs/admin/aggregation-mapping/src/index.ts

...ntainer/aggregation-mapping-form-container.component.html

...iner/aggregation-mapping-form-container.component.spec.ts

...container/aggregation-mapping-form-container.component.ts

...-field-form/aggregation-mapping-field-form.component.html

...eld-form/aggregation-mapping-field-form.component.spec.ts