Set createdAt and updatedAt as readonly on the frontend (#13096)

This is not the prettiest fix but it's the 5th time I get the feedback
from a user that these fields should be readonly, let's have a special
case for them

---------

Co-authored-by: Lucas Bordeau <bordeau.lucas@gmail.com>

packages/twenty-front/src/modules/object-record/record-field/utils/isFieldValueReadOnly.ts

@@ -65,6 +65,16 @@ export const isFieldValueReadOnly = ({
     return true;
   }
 
+  const isFieldDateOrDateTime =
+    fieldType === FieldMetadataType.DATE ||
+    fieldType === FieldMetadataType.DATE_TIME;
+  const isFieldCreatedAtOrUpdatedAt =
+    fieldName === 'createdAt' || fieldName === 'updatedAt';
+
+  if (isFieldDateOrDateTime && isFieldCreatedAtOrUpdatedAt) {
+    return true;
+  }
+
   if (
     isDefined(fieldType) &&
     (isFieldActor({ type: fieldType }) || isFieldRichText({ type: fieldType }))