Set up localization with feature flag control (#9649)

Refers #8128 

Changes Introduced:
- Added i18n configuration.
- Added a feature flag for localization.
- Enabled language switching based on the flag.

---------

Co-authored-by: Félix Malfait <felix@twenty.com>

packages/twenty-front/src/modules/object-record/record-show/hooks/useRecordShowContainerTabs.ts

@@ -16,8 +16,8 @@ import {
   IconPrinter,
   IconSettings,
 } from 'twenty-ui';
-import { FeatureFlag, FieldMetadataType } from '~/generated-metadata/graphql';
-import { FeatureFlagKey } from '~/generated/graphql';
+import { FieldMetadataType } from '~/generated-metadata/graphql';
+import { FeatureFlag, FeatureFlagKey } from '~/generated/graphql';
 
 export const useRecordShowContainerTabs = (
   loading: boolean,