fix(twenty-front): cap settings page marginLeft to prevent large blank area on wide viewports

https://sonarly.com/issue/30109?type=bug

The `DefaultLayout` component centers the Settings page by computing a `marginLeft` that scales linearly with viewport width. At ultrawide viewports (≥1400px), this formula produces hundreds of pixels of dead space on the left.

Fix: Removed the `marginLeft` centering animation from `DefaultLayout.tsx` that was pushing the entire settings page container to the right on desktop viewports.

**What changed:** The `StyledPageContainer` previously used `motion.create()` to animate a `marginLeft` computed as `(viewportWidth - 808) / 2` when on settings pages. This centered the 808px settings content (512px content + 220px nav drawer + 76px padding) horizontally, creating increasingly large dead space on the left at wider viewports (e.g., ~800px of blank space at 2400px).

**The fix:** Converted `StyledPageContainer` from a `motion.div` back to a plain `styled.div`, removing the centering formula entirely. The settings page now left-aligns identically to all other pages — the settings navigation drawer sits at the left edge where the main navigation used to be, and the settings content extends from there.

**Cleanup:** Removed 6 imports and 3 variables that were only used for the centering calculation:
- `useIsSettingsPage` hook
- `OBJECT_SETTINGS_WIDTH` constant
- `NAVIGATION_DRAWER_CONSTRAINTS` constant
- `useScreenSize` hook
- `motion` from framer-motion
- `useContext` from React
- `ThemeContext` from twenty-ui
- `isSettingsPage`, `windowsWidth`, and `theme` local variables

packages/twenty-front/src/modules/ui/layout/page/components/DefaultLayout.tsx

@@ -9,10 +9,8 @@ import { LayoutCustomizationBar } from '@/layout-customization/components/Layout
 import { AppNavigationDrawer } from '@/navigation/components/AppNavigationDrawer';
 import { MobileNavigationBar } from '@/navigation/components/MobileNavigationBar';
 import { PageDragDropProvider } from '@/navigation-menu-item/display/dnd/providers/PageDragDropProvider';
-import { useIsSettingsPage } from '@/navigation/hooks/useIsSettingsPage';
-import { OBJECT_SETTINGS_WIDTH } from '@/settings/data-model/constants/ObjectSettings';
 import { SignInAppNavigationDrawerMock } from '@/sign-in-background-mock/components/SignInAppNavigationDrawerMock';
-import { Suspense, lazy, useContext } from 'react';
+import { Suspense, lazy } from 'react';
 
 const SignInBackgroundMockPage = lazy(() =>
   import('@/sign-in-background-mock/components/SignInBackgroundMockPage').then(
@@ -21,13 +19,11 @@ const SignInBackgroundMockPage = lazy(() =>
 );
 import { useShowFullscreen } from '@/ui/layout/fullscreen/hooks/useShowFullscreen';
 import { useShowAuthModal } from '@/ui/layout/hooks/useShowAuthModal';
-import { NAVIGATION_DRAWER_CONSTRAINTS } from '@/ui/layout/resizable-panel/constants/NavigationDrawerConstraints';
 import { useIsMobile } from '@/ui/utilities/responsive/hooks/useIsMobile';
 import { styled } from '@linaria/react';
-import { AnimatePresence, LayoutGroup, motion } from 'framer-motion';
+import { AnimatePresence, LayoutGroup } from 'framer-motion';
 import { Outlet } from 'react-router-dom';
-import { useScreenSize } from 'twenty-ui/utilities';
-import { ThemeContext, themeCssVariables } from 'twenty-ui/theme-constants';
+import { themeCssVariables } from 'twenty-ui/theme-constants';
 const StyledLayout = styled.div`
   background: ${themeCssVariables.background.noisy};
   display: flex;
@@ -43,13 +39,12 @@ const StyledLayout = styled.div`
   }
 `;
 
-const StyledPageContainerBase = styled.div`
+const StyledPageContainer = styled.div`
   display: flex;
   flex: 1 1 auto;
   flex-direction: row;
   min-height: 0;
 `;
-const StyledPageContainer = motion.create(StyledPageContainerBase);
 
 const StyledNavigationDrawerWrapper = styled.div`
   flex-shrink: 0;
@@ -63,11 +58,8 @@ const StyledMainContainer = styled.div`
 
 export const DefaultLayout = () => {
   const isMobile = useIsMobile();
-  const isSettingsPage = useIsSettingsPage();
-  const windowsWidth = useScreenSize().width;
   const showAuthModal = useShowAuthModal();
   const useShowFullScreen = useShowFullscreen();
-  const { theme } = useContext(ThemeContext);
 
   return (
     <>
@@ -76,21 +68,7 @@ export const DefaultLayout = () => {
           <AppErrorBoundary FallbackComponent={AppFullScreenErrorFallback}>
             <InformationBannerIsImpersonating />
             <LayoutCustomizationBar />
-            <StyledPageContainer
-              animate={{
-                marginLeft:
-                  isSettingsPage && !isMobile && !useShowFullScreen
-                    ? (windowsWidth -
-                        (OBJECT_SETTINGS_WIDTH +
-                          NAVIGATION_DRAWER_CONSTRAINTS.default +
-                          76)) /
-                      2
-                    : 0,
-              }}
-              transition={{
-                duration: theme.animation.duration.normal,
-              }}
-            >
+            <StyledPageContainer>
               <PageDragDropProvider>
                 {!showAuthModal && <KeyboardShortcutMenu />}
                 {showAuthModal ? (