Add sort feature for Links type (#6503)

Closes https://github.com/twentyhq/twenty/issues/5741

Filtering was already working.

I just added the required logic in the frontend to allow sorting by
primary link url (because label can be empty)

packages/twenty-front/src/modules/object-metadata/constants/SortableFieldMetadataTypes.ts

@@ -12,4 +12,5 @@ export const SORTABLE_FIELD_METADATA_TYPES = [
   FieldMetadataType.FullName,
   FieldMetadataType.Rating,
   FieldMetadataType.Currency,
+  FieldMetadataType.Links,
 ];