Add compact and comfortable spacing to the Panel

[Nefcanto]

Similar to the Gmail

And because it's so fundamental that it even exists in the Quran:

يَا أَيُّهَا الَّذِينَ آمَنُوا إِذَا قِيلَ لَكُمْ تَفَسَّحُوا فِي الْمَجَالِسِ فَافْسَحُوا يَفْسَحِ اللَّهُ لَكُمْ ۖ

[Nefcanto]

It is called Density in Gmail. That's a good name. We can use it too.