feat: add resizable navigation drawer and command menu panels (#16612)

## Summary

Adds Notion-style resizable panels for the navigation drawer (left
sidebar) and command menu (right panel).

## Behavior

- **Hover** at panel edge → resize cursor appears
- **Click** → collapse/close the panel
- **Drag** → resize the panel (5px movement threshold to distinguish
from click)

## Constraints

| Panel | Min | Max | Default | Collapse Threshold |
|-------|-----|-----|---------|-------------------|
| Navigation Drawer | 180px | 350px | 220px | 150px |
| Command Menu | 320px | 600px | 400px | 250px |

## Performance Optimizations

- **CSS variables** for smooth 60fps resize (no React re-renders during
drag)
- **Table resize observer disabled** during panel resize to prevent
expensive recalculations
- **React.memo wrapper** on page body to prevent unnecessary re-renders

## Architecture

- `useResizablePanel` hook following the same pattern as
`useResizeTableHeader`
- `ResizablePanelEdge` - resize handle positioned at panel edge
- `ResizablePanelGap` - resize handle in the gap between panels
- `cssVariableEffect` - Recoil effect to sync CSS variables with state

## Refactoring

- Split `recoil-effects.ts` into separate files in `utils/recoil/` (one
export per file)
- Persist panel widths to localStorage via existing `localStorageEffect`

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

@@ -15,7 +15,7 @@ import { SignInAppNavigationDrawerMock } from '@/sign-in-background-mock/compone
 import { SignInBackgroundMockPage } from '@/sign-in-background-mock/components/SignInBackgroundMockPage';
 import { useShowFullscreen } from '@/ui/layout/fullscreen/hooks/useShowFullscreen';
 import { useShowAuthModal } from '@/ui/layout/hooks/useShowAuthModal';
-import { NAV_DRAWER_WIDTHS } from '@/ui/navigation/navigation-drawer/constants/NavDrawerWidths';
+import { NAVIGATION_DRAWER_CONSTRAINTS } from '@/ui/layout/resizable-panel/constants/NavigationDrawerConstraints';
 import { useIsMobile } from '@/ui/utilities/responsive/hooks/useIsMobile';
 import { Global, css, useTheme } from '@emotion/react';
 import styled from '@emotion/styled';
@@ -87,7 +87,7 @@ export const DefaultLayout = () => {
                 isSettingsPage && !isMobile && !useShowFullScreen
                   ? (windowsWidth -
                       (OBJECT_SETTINGS_WIDTH +
-                        NAV_DRAWER_WIDTHS.menu.desktop.expanded +
+                        NAVIGATION_DRAWER_CONSTRAINTS.default +
                         76)) /
                     2
                   : 0,