feat: add lingui/no-unlocalized-strings ESLint rule and fix translations (#16610)

## Summary
This PR adds the `lingui/no-unlocalized-strings` ESLint rule to detect
untranslated strings and fixes translation issues across multiple
components.

## Changes

### ESLint Configuration (`eslint.config.react.mjs`)
- Added comprehensive `ignore` patterns for non-translatable strings
(CSS values, HTML attributes, technical identifiers)
- Added `ignoreNames` for props that don't need translation (className,
data-*, aria-*, etc.)
- Added `ignoreFunctions` for console methods, URL APIs, and other
non-user-facing functions
- Disabled rule for debug files, storybook, and test files

### Components Fixed (~19 files)
- Object record components (field inputs, pickers, merge dialogs)
- Settings components (accounts, admin panel)
- Serverless function components
- Record table and title cell components

## Status
🚧 **Work in Progress** - ~124 files remaining to fix

This PR is being submitted as draft to allow progressive fixing of
remaining translation issues.

## Testing
- Run `npx eslint "src/**/*.tsx"` in `packages/twenty-front` to check
remaining issues

packages/twenty-front/src/modules/ui/layout/dropdown/components/DropdownMenuSearchInput.tsx

@@ -1,3 +1,5 @@
+import { msg } from '@lingui/core/macro';
+import { useLingui } from '@lingui/react/macro';
 import { useInputFocusWithoutScrollOnMount } from '@/ui/input/hooks/useInputFocusWithoutScrollOnMount';
 import styled from '@emotion/styled';
 import { forwardRef, type InputHTMLAttributes } from 'react';
@@ -32,17 +34,21 @@ const StyledInput = styled.input`
   }
 `;
 
+const defaultSearchPlaceholder = msg`Search`;
+
 export const DropdownMenuSearchInput = forwardRef<
   HTMLInputElement,
   InputHTMLAttributes<HTMLInputElement>
->(({ value, onChange, placeholder = 'Search', type }, forwardedRef) => {
+>(({ value, onChange, placeholder, type }, forwardedRef) => {
+  const { i18n } = useLingui();
   const { inputRef } = useInputFocusWithoutScrollOnMount();
   const ref = forwardedRef ?? inputRef;
+  const translatedPlaceholder = placeholder ?? i18n._(defaultSearchPlaceholder);
   return (
     <StyledDropdownMenuSearchInputContainer>
       <StyledInput
         autoComplete="off"
-        {...{ onChange, placeholder, type, value }}
+        {...{ onChange, placeholder: translatedPlaceholder, type, value }}
         ref={ref}
       />
     </StyledDropdownMenuSearchInputContainer>

packages/twenty-front/src/modules/ui/layout/dropdown/components/__stories__/Dropdown.stories.tsx

@@ -23,6 +23,7 @@ import {
 import { Button } from 'twenty-ui/input';
 import { MenuItem } from 'twenty-ui/navigation';
 import { ComponentDecorator } from 'twenty-ui/testing';
+import { I18nFrontDecorator } from '~/testing/decorators/I18nFrontDecorator';
 import { Dropdown } from '../Dropdown';
 import { DropdownMenuHeader } from '../DropdownMenuHeader/DropdownMenuHeader';
 import { DropdownMenuInput } from '../DropdownMenuInput';
@@ -34,7 +35,7 @@ import { StyledDropdownMenuSubheader } from '../StyledDropdownMenuSubheader';
 const meta: Meta<typeof Dropdown> = {
   title: 'UI/Layout/Dropdown/Dropdown',
   component: Dropdown,
-  decorators: [ComponentDecorator, (Story) => <Story />],
+  decorators: [I18nFrontDecorator, ComponentDecorator, (Story) => <Story />],
   args: {
     clickableComponent: <Button title="Open Dropdown" />,
     dropdownOffset: { x: 0, y: 8 },