Consolidate database types and remove unused components (#26994)

...ponents/DatabaseCacheTimeField/DatabaseCacheTimeField.tsx

frontend/src/metabase-types/api/database.ts

frontend/src/metabase-types/api/mocks/database.ts

frontend/src/metabase-types/api/mocks/timeline.ts

frontend/src/metabase-types/api/timeline.ts

frontend/src/metabase-types/store/mocks/setup.ts

frontend/src/metabase-types/store/setup.ts

.../admin/databases/components/DatabaseList/DatabaseList.jsx

...ses/components/widgets/CacheFieldValuesScheduleWidget.jsx

...s/components/widgets/EngineWidget/EngineWidget.styled.tsx

...atabases/components/widgets/EngineWidget/EngineWidget.tsx

...omponents/widgets/EngineWidget/EngineWidget.unit.spec.tsx

.../admin/databases/components/widgets/EngineWidget/index.ts

.../admin/databases/components/widgets/EngineWidget/types.ts

...tabases/components/widgets/MetadataSyncScheduleWidget.jsx

...ase/admin/databases/containers/DatabaseEditApp.styled.tsx

...e/admin/databases/containers/DatabaseEditApp.unit.spec.js

frontend/src/metabase/components/SyncingModal/index.ts

frontend/src/metabase/containers/SyncingModal/index.ts

...tabaseAuthCodeDescription/DatabaseAuthCodeDescription.tsx