### System details

Omarchy 3.1.5 (master), Kernel 6.17.6-arch1-1, Hyprland 0.51.1, alacritty 0.16.1, 1060 packages, Dell XPS 15 7590, i9-9980HK @ 5GHz, GTX 1650 Mobile + Intel UHD 630

### What's wrong?

When opening the Walker clipboard manager (`Super+Ctrl+V`) and then subsequently opening the system menu (`Super+Esc`), the clipboard item preview panel remains visible on the right side while the system menu items replace the clipboard list on the left. This creates a confusing UI state where two different menus are partially displayed simultaneously.

## Steps to Reproduce

1. Press `Super + Ctrl + V` to open the clipboard manager in Walker
   - The clipboard manager displays: **list of clipboard items on the left**, **preview of selected item on the right**

<img width="3840" height="2160" alt="Image" src="https://github.com/user-attachments/assets/8f3a8b3c-19fa-4358-abef-18dec3a122ee" />

2. Without closing the clipboard manager, press `Super + Esc` to open the system menu

<img width="3840" height="2160" alt="Image" src="https://github.com/user-attachments/assets/2637b5e7-40a0-4b2e-a011-e7e6fe455a91" />

3. **Bug occurs**:   - The system menu list (Lock, Screensaver, Suspend, Restart, Shutdown) replaces the clipboard list on the left
   - The clipboard preview from the previous menu **remains visible on the right**
   - This creates a mixed UI state with elements from two different menus displayed simultaneously

## Expected Behavior

When switching from the clipboard manager to the system menu (or any other Walker menu), the **entire previous menu** (including both the list and the preview panel) should be dismissed before showing the new menu.

## Actual Behavior

The system menu items appear on the left side, but the clipboard item preview from the previous menu persists on the right side, creating a visually confusing hybrid state.

## Environment

- **Omarchy Version**: v3.1.5 (commit `7f9ee95`)
- **Hardware**: Dell XPS 15 7590
- **CPU**: Intel i9-9980HK (8-core/16-thread @ 2.40GHz base, 5.00GHz turbo)
- **RAM**: 31GB
- **Display**: 4K (3840x2160)
- **Desktop**: Hyprland 0.51.0 (Wayland compositor)

## Workaround

The fix that has worked for me is a single line, `walker --close` addition to the `menu()` function in `~/.local/share/omarchy/bin/omarchy-menu` that closes any existing Walker instance before launching a new dmenu.

```bash
menu() {
  local prompt="$1"
  local options="$2"
  local extra="$3"
  local preselect="$4"

  read -r -a args <<<"$extra"

  if [[ -n "$preselect" ]]; then
    local index
    index=$(echo -e "$options" | grep -nxF "$preselect" | cut -d: -f1)
    if [[ -n "$index" ]]; then
      args+=("-c" "$index")
    fi
  fi

  ############## WALKER WORKAROUND ##############
  # Close any existing walker instance to prevent UI overlap
  walker --close 2>/dev/null
  ##################################################

  echo -e "$options" | omarchy-launch-walker --dmenu --width 295 --minheight 1 --maxheight 600 -p "$prompt…" "${args[@]}" 2>/dev/null
}
```

After making this change, the menu switching works correctly - the clipboard preview no longer persists when opening other menus.