feat: merge records (#13436)

Co-authored-by: Félix Malfait <felix.malfait@gmail.com>

packages/twenty-shared/src/constants/MutationMaxMergeRecords.ts

@@ -0,0 +1 @@
+export const MUTATION_MAX_MERGE_RECORDS = 9;

packages/twenty-shared/src/constants/index.ts

@@ -11,6 +11,7 @@ export { FIELD_FOR_TOTAL_COUNT_AGGREGATE_OPERATION } from './FieldForTotalCountA
 export { MAX_OPTIONS_TO_DISPLAY } from './FieldMetadataMaxOptionsToDisplay';
 export { FIELD_RESTRICTED_ADDITIONAL_PERMISSIONS_REQUIRED } from './FieldRestrictedAdditionalPermissionsRequired';
 export { LABEL_IDENTIFIER_FIELD_METADATA_TYPES } from './LabelIdentifierFieldMetadataTypes';
+export { MUTATION_MAX_MERGE_RECORDS } from './MutationMaxMergeRecords';
 export { PermissionsOnAllObjectRecords } from './PermissionsOnAllObjectRecords';
 export { QUERY_MAX_RECORDS } from './QueryMaxRecords';
 export { RELATION_NESTED_QUERY_KEYWORDS } from './RelationNestedQueriesKeyword';