Forbid creation of link field type (#6237)

This is the first step of Link field type deprecation
(https://github.com/twentyhq/twenty/issues/5909).
Forbid creation of link field type in product and api. Update to this
type is not a concern as we do not allow the update of field type.

packages/twenty-front/src/pages/settings/data-model/SettingsObjectFieldEdit.tsx

@@ -213,6 +213,7 @@ export const SettingsObjectFieldEdit = () => {
               <StyledSettingsObjectFieldTypeSelect
                 disabled
                 fieldMetadataItem={activeMetadataField}
+                excludedFieldTypes={[FieldMetadataType.Link]}
               />
               <SettingsDataModelFieldSettingsFormCard
                 disableCurrencyForm