ide: fixing window navigator when only one window is there
ide: fixing window navigator when only one window is there

pascience/LivelyKernel,pascience/LivelyKernel,NikolaySuslov/LivelyKernel,NikolaySuslov/LivelyKernel,LivelyKernel/LivelyKernel,pascience/LivelyKernel,LivelyKernel/LivelyKernel,NikolaySuslov/LivelyKernel,LivelyKernel/LivelyKernel