Add notification translated when resource is created, updated or deleted successfully

...stores/submission-policy/admin-submission-policy.state.ts

src/app/features/deposit/stores/deposit.state.ts

src/app/shared/stores/language/language.state.ts

src/app/shared/stores/license/license.state.ts

...d/stores/organizational-unit/organizational-unit.state.ts

...d/stores/preservation-policy/preservation-policy.state.ts

...hared/stores/submission-policy/submission-policy.state.ts

src/assets/i18n/de.json

src/assets/i18n/en.json

src/assets/i18n/fr.json

src/environments/environment.defaults.ts