Add view to accept and reject resource synchronization requests

.gitlab-ci.yml

src/App.vue

src/client/resource/services/ResourceService.ts

src/components/AppHeader.vue

src/components/modals/ReasonModal.vue

src/router/adminRoutes.ts

src/router/index.ts

src/stores/resources.ts

src/views/ImprintView.vue

src/views/PrivacyPolicyView.vue

src/views/TermsOfUsageView.vue

src/views/admin/AdminResourcesView.vue

src/views/admin/AdminSyncRequestsView.vue