fix IndexFieldMetadata availability in IndexMetadata/ObjectMetadata in front (#12886)

Context : 
- IndexFieldMetadata was no longer available on 'objects' gql query
([since this PR](https://github.com/twentyhq/twenty/pull/12785)). Then,
unicity checks on import do not work anymore.

Fix : 
- Add a dataloader logic in indexFieldMetadata
- Add extra check in unicity hook on import

packages/twenty-shared/src/utils/index.ts

@@ -26,6 +26,7 @@ export { getAbsoluteUrlOrThrow } from './url/getAbsoluteUrlOrThrow';
 export { getUrlHostnameOrThrow } from './url/getUrlHostnameOrThrow';
 export { isValidHostname } from './url/isValidHostname';
 export { isValidUrl } from './url/isValidUrl';
+export { lowercaseUrlAndRemoveTrailingSlash } from './url/lowercaseUrlAndRemoveTrailingSlash';
 export { isDefined } from './validation/isDefined';
 export { isLabelIdentifierFieldMetadataTypes } from './validation/isLabelIdentifierFieldMetadataTypes';
 export { isValidLocale } from './validation/isValidLocale';

packages/twenty-shared/src/utils/url/__tests__/lowercaseUrlAndRemoveTrailingSlash.test.ts

@@ -0,0 +1,24 @@
+import { lowercaseUrlAndRemoveTrailingSlash } from '@/utils/url/lowercaseUrlAndRemoveTrailingSlash';
+
+describe('lowercaseUrlAndRemoveTrailingSlash', () => {
+  it('should leave lowcased domain unchanged', () => {
+    const primaryLinkUrl = 'https://www.example.com/test';
+    const result = lowercaseUrlAndRemoveTrailingSlash(primaryLinkUrl);
+
+    expect(result).toBe('https://www.example.com/test');
+  });
+
+  it('should lowercase the domain of the primary link url', () => {
+    const primaryLinkUrl = 'htTps://wwW.exAmple.coM/TEST';
+    const result = lowercaseUrlAndRemoveTrailingSlash(primaryLinkUrl);
+
+    expect(result).toBe('https://www.example.com/TEST');
+  });
+
+  it('should not add a trailing slash', () => {
+    const primaryLinkUrl = 'https://www.example.com';
+    const result = lowercaseUrlAndRemoveTrailingSlash(primaryLinkUrl);
+
+    expect(result).toBe('https://www.example.com');
+  });
+});

packages/twenty-shared/src/utils/url/lowercaseUrlAndRemoveTrailingSlash.ts

@@ -0,0 +1,7 @@
+export const lowercaseUrlAndRemoveTrailingSlash = (url: string) => {
+  try {
+    return new URL(url).toString().toLowerCase().replace(/\/$/, '');
+  } catch {
+    return url.toLowerCase();
+  }
+};