Refactor default value for select (#5343)

In this PR, we are refactoring two things:
- leverage field.defaultValue for Select and MultiSelect settings form
(instead of option.isDefault)
- use quoted string (ex: "'USD'") for string default values to embrace
backend format

---------

Co-authored-by: Thaïs Guigon <guigon.thais@gmail.com>

packages/twenty-front/src/modules/object-metadata/validation-schemas/selectOptionsSchema.ts

@@ -0,0 +1,46 @@
+import { z } from 'zod';
+
+import { FieldMetadataItemOption } from '@/object-metadata/types/FieldMetadataItem';
+import { getOptionValueFromLabel } from '@/settings/data-model/fields/forms/utils/getOptionValueFromLabel';
+import { themeColorSchema } from '@/ui/theme/utils/themeColorSchema';
+
+const selectOptionSchema = z
+  .object({
+    color: themeColorSchema,
+    id: z.string(),
+    label: z.string().trim().min(1),
+    position: z.number(),
+    value: z.string(),
+  })
+  .refine((option) => option.value === getOptionValueFromLabel(option.label), {
+    message: 'Value does not match label',
+  }) satisfies z.ZodType<FieldMetadataItemOption>;
+
+export const selectOptionsSchema = z
+  .array(selectOptionSchema)
+  .min(1)
+  .refine(
+    (options) => {
+      const optionIds = options.map(({ id }) => id);
+      return new Set(optionIds).size === options.length;
+    },
+    {
+      message: 'Options must have unique ids',
+    },
+  )
+  .refine(
+    (options) => {
+      const optionValues = options.map(({ value }) => value);
+      return new Set(optionValues).size === options.length;
+    },
+    {
+      message: 'Options must have unique values',
+    },
+  )
+  .refine(
+    (options) =>
+      [...options].sort().every((option, index) => option.position === index),
+    {
+      message: 'Options positions must be sequential',
+    },
+  );