fix(wm): revert mff edge case regression

This commit ensures that the wm's mouse_follows_mouse state is respected when handling FocusChange
WindowManagerEvents, so that applications opened on empty workspaces do not automatically center the
cursor unless configured to do so.

fix #782

komorebi/src/process_event.rs

@@ -260,7 +260,7 @@ impl WindowManager {
  already_moved_window_handles.remove(&window.hwnd);
  }
  WindowManagerEvent::FocusChange(_, window) => {
- self.update_focused_workspace(true, false)?;
+ self.update_focused_workspace(self.mouse_follows_focus, false)?;
 
  let workspace = self.focused_workspace_mut()?;
  if !workspace