Remove field metadata interface references (#13305)

# Introduction
Following https://github.com/twentyhq/twenty/pull/13264
> After this PR merge will create a new one removing the type and
replacing it to FieldMetadataEntity.

This is it !

packages/twenty-server/src/engine/metadata-modules/utils/generate-object-metadata-maps.util.ts

@@ -6,7 +6,7 @@ import { ObjectMetadataInterface } from 'src/engine/metadata-modules/field-metad
 import { FieldMetadataMap } from 'src/engine/metadata-modules/types/field-metadata-map';
 import { ObjectMetadataItemWithFieldMaps } from 'src/engine/metadata-modules/types/object-metadata-item-with-field-maps';
 import { ObjectMetadataMaps } from 'src/engine/metadata-modules/types/object-metadata-maps';
-import { isFieldMetadataInterfaceOfType } from 'src/engine/utils/is-field-metadata-of-type.util';
+import { isFieldMetadataEntityOfType } from 'src/engine/utils/is-field-metadata-of-type.util';
 
 export const generateObjectMetadataMaps = (
   objectMetadataCollection: ObjectMetadataInterface[],
@@ -21,10 +21,7 @@ export const generateObjectMetadataMaps = (
 
     for (const fieldMetadata of objectMetadata.fields) {
       if (
-        isFieldMetadataInterfaceOfType(
-          fieldMetadata,
-          FieldMetadataType.RELATION,
-        )
+        isFieldMetadataEntityOfType(fieldMetadata, FieldMetadataType.RELATION)
       ) {
         if (fieldMetadata.settings?.joinColumnName) {
           fieldIdByJoinColumnNameMap[fieldMetadata.settings.joinColumnName] =

packages/twenty-server/src/engine/metadata-modules/utils/validate-metadata-identifier-field-metadata-id.utils.ts

@@ -3,8 +3,6 @@ import {
   isLabelIdentifierFieldMetadataTypes,
 } from 'twenty-shared/utils';
 
-import { FieldMetadataInterface } from 'src/engine/metadata-modules/field-metadata/interfaces/field-metadata.interface';
-
 import { FieldMetadataEntity } from 'src/engine/metadata-modules/field-metadata/field-metadata.entity';
 import {
   ObjectMetadataException,
@@ -14,14 +12,14 @@ import {
 type Validator = {
   validator: (args: {
     fieldMetadataId: string;
-    matchingFieldMetadata?: FieldMetadataEntity | FieldMetadataInterface;
+    matchingFieldMetadata?: FieldMetadataEntity;
   }) => boolean;
   label: string;
 };
 
 type ValidateMetadataIdentifierFieldMetadataIdOrThrowArgs = {
   fieldMetadataId: string;
-  fieldMetadataItems: FieldMetadataEntity[] | FieldMetadataInterface[];
+  fieldMetadataItems: FieldMetadataEntity[];
   validators: Validator[];
 };
 const validatorRunner = ({
@@ -46,7 +44,7 @@ const validatorRunner = ({
 type ValidateMetadataIdentifierFieldMetadataIdsArgs = {
   labelIdentifierFieldMetadataId: string | undefined;
   imageIdentifierFieldMetadataId: string | undefined;
-  fieldMetadataItems: FieldMetadataEntity[] | FieldMetadataInterface[];
+  fieldMetadataItems: FieldMetadataEntity[];
 };
 export const validateMetadataIdentifierFieldMetadataIds = ({
   imageIdentifierFieldMetadataId,