Fix FieldValues behavior with List Fields over threshold

src/metabase/api/common.clj

src/metabase/api/field.clj

src/metabase/db/metadata_queries.clj

src/metabase/models/field.clj

src/metabase/models/field_values.clj

src/metabase/models/interface.clj

src/metabase/models/params.clj

src/metabase/sync/analyze/classifiers/category.clj

src/metabase/sync/analyze/fingerprint/global.clj

test/metabase/models/field_values_test.clj

test/metabase/models/params_test.clj

test/metabase/sync/analyze/classifiers/category_test.clj

test/metabase/sync/field_values_test.clj

test/metabase/sync_database_test.clj