Prevent relation update from settings (#13099)

## Expected behavior

Described behavior regarding: (update | create) x (custom | standard) x
(icon, label, name, isSynced)

**Custom:**
- Field RELATION create: name, label, isSynced, icon should be editable
- Field RELATION update: name should not, icon label, isSynced should
- For other fields, icon, label, name, isSynced should be editable at
field creation | update

To simplify: Field RELATION name should not be editable at update

**Standards**
- Field: create does not makes sense
- Field: name should not, icon label, isSynced should (this will end up
in overrides)

To simplify, no Field RELATION edge case, name should not be editable at
update

**Note:** the FE logic is quite different as the UI is hiding some
details behind the syncWithLabel. See my comments and TODO there


## What I've tested:
(update | create) x (custom | standard) x (icon, label, name, isSynced,
description)

packages/twenty-server/src/engine/metadata-modules/field-metadata/hooks/__tests__/before-update-one-field.hook.spec.ts

@@ -141,33 +141,6 @@ describe('BeforeUpdateOneField', () => {
     ).rejects.toThrow(ValidationError);
   });
 
-  it('should throw ValidationError when trying to update label when it is synced with name', async () => {
-    const instance: UpdateOneInputType<UpdateFieldInputForTest> = {
-      id: mockFieldId,
-      update: {
-        label: 'New Label',
-      },
-    };
-
-    const mockField: Partial<FieldMetadataEntity> = {
-      id: mockFieldId,
-      isCustom: false,
-      isLabelSyncedWithName: true,
-      label: 'Old Label',
-    };
-
-    jest
-      .spyOn(fieldMetadataService, 'findOneWithinWorkspace')
-      .mockResolvedValue(mockField as FieldMetadataEntity);
-
-    await expect(
-      hook.run(instance as UpdateOneInputType<UpdateFieldInput>, {
-        workspaceId: mockWorkspaceId,
-        locale: undefined,
-      }),
-    ).rejects.toThrow(ValidationError);
-  });
-
   it('should handle isActive updates for standard fields', async () => {
     const instance: UpdateOneInputType<UpdateFieldInputForTest> = {
       id: mockFieldId,

packages/twenty-server/src/engine/metadata-modules/field-metadata/hooks/before-update-one-field.hook.ts

@@ -89,18 +89,6 @@ export class BeforeUpdateOneField<T extends UpdateFieldInput>
         !updatableFields.includes(key) && !overridableFields.includes(key),
     );
 
-    const isUpdatingLabelWhenSynced =
-      instance.update.label &&
-      fieldMetadata.isLabelSyncedWithName &&
-      instance.update.isLabelSyncedWithName !== false &&
-      instance.update.label !== fieldMetadata.label;
-
-    if (isUpdatingLabelWhenSynced) {
-      throw new ValidationError(
-        'Cannot update label when it is synced with name',
-      );
-    }
-
     if (nonUpdatableFields.length > 0) {
       throw new ValidationError(
         `Only isActive, isLabelSyncedWithName, label, icon, description and defaultValue fields can be updated for standard fields. Invalid fields: ${nonUpdatableFields.join(', ')}`,
@@ -390,13 +378,6 @@ export class BeforeUpdateOneField<T extends UpdateFieldInput>
     update: StandardFieldUpdate,
     locale?: keyof typeof APP_LOCALES,
   ): void {
-    if (
-      fieldMetadata.isLabelSyncedWithName ||
-      update.isLabelSyncedWithName === true
-    ) {
-      return;
-    }
-
     if (!isDefined(instance.update.label)) {
       return;
     }