feat: simplification of default-value specification in FieldMetadata (#4592)

* feat: wip refactor default-value

* feat: health check to migrate default value

* fix: tests

* fix: refactor defaultValue to make it more clean

* fix: unit tests

* fix: front-end default value

packages/twenty-front/src/modules/object-metadata/utils/formatFieldMetadataItemInput.ts

@@ -44,7 +44,7 @@ export const formatFieldMetadataItemInput = (
 
   return {
     defaultValue: defaultOption
-      ? getOptionValueFromLabel(defaultOption.label)
+      ? `'${getOptionValueFromLabel(defaultOption.label)}'`
       : undefined,
     description: input.description?.trim() ?? null,
     icon: input.icon,