Remove viewGroup.fieldMetadataId (#16571)

Final step of
https://github.com/orgs/twentyhq/projects/1/views/8?pane=issue&itemId=142348748&issue=twentyhq%7Ccore-team-issues%7C1965

Removing viewGroup.fieldMetadataId.
It's already not used in FE anymore

packages/twenty-server/src/engine/api/common/common-query-runners/common-create-many-query-runner/utils/__tests__/get-conflicting-fields.util.spec.ts

@@ -26,7 +26,6 @@ describe('getConflictingFields', () => {
       universalIdentifier: overrides.id,
       viewFieldIds: [],
       viewFilterIds: [],
-      viewGroupIds: [],
       kanbanAggregateOperationViewIds: [],
       calendarViewIds: [],
       applicationId: null,