feat: enforce @/ alias for imports and fix all relative parent imports (#16787)

## Summary
This PR enforces the use of `@/` alias for imports instead of relative
parent imports (`../`).

## Changes

### ESLint Configuration
- Added `no-restricted-imports` pattern in `eslint.config.react.mjs` to
block `../*` imports with the message "Relative parent imports are not
allowed. Use @/ alias instead."
- Removed the non-working `import/no-relative-parent-imports` rule
(doesn't work properly in ESLint flat config)

### VS Code Settings
- Added `javascript.preferences.importModuleSpecifier: non-relative` to
`.vscode/settings.json` (TypeScript setting was already there)

### Code Fixes
- Fixed **941 relative parent imports** across **706 files** in
`packages/twenty-front`
- All `../` imports converted to use `@/` alias

## Why
- Consistent import style across the codebase
- Easier to move files without breaking imports
- Better IDE support for auto-imports
- Clearer understanding of where imports come from

packages/twenty-front/src/modules/prefetch/graphql/operation-signatures/factories/findAllFavoritesFolderOperationSignatureFactory.ts

@@ -1,17 +1,18 @@
 import { CoreObjectNameSingular } from '@/object-metadata/types/CoreObjectNameSingular';
 import { type RecordGqlOperationSignatureFactory } from '@/object-record/graphql/types/RecordGqlOperationSignatureFactory';
 
-export const findAllFavoritesFolderOperationSignatureFactory: RecordGqlOperationSignatureFactory<{}> =
-  () => ({
-    objectNameSingular: CoreObjectNameSingular.FavoriteFolder,
-    variables: {},
-    fields: {
-      id: true,
-      position: true,
-      createdAt: true,
-      updatedAt: true,
-      deletedAt: true,
-      name: true,
-      icon: true,
-    },
-  });
+export const findAllFavoritesFolderOperationSignatureFactory: RecordGqlOperationSignatureFactory<
+  object
+> = () => ({
+  objectNameSingular: CoreObjectNameSingular.FavoriteFolder,
+  variables: {},
+  fields: {
+    id: true,
+    position: true,
+    createdAt: true,
+    updatedAt: true,
+    deletedAt: true,
+    name: true,
+    icon: true,
+  },
+});