Objo Studio can combine its menu and toolbar in a compact window header

Provide an optional compact window-header layout for Objo Studio on Windows and Linux. This layout should reclaim vertical space by placing the main menu and primary toolbar controls in the window-header area. The menu may remain visible or collapse behind a hamburger button depending on the final responsive design, and the existing layout should remain available for users who prefer it.

The compact layout must preserve keyboard access, accessibility, window dragging and standard platform window controls.