[Feature request] switch tab as in Vimium

[AndreaPi]

First of all, compliments for the very nice app! I'm using it together with Raycast and it works very well. The only thing I'm missing in browsers supported by Vimac is the possibility to switch tabs as easily as in Vimium: https://github.com/philc/vimium. I often need to change tabs, and having to hit Space + 2 letters every time is a little cumbersome. Would it be possible to add a Vimium mode? Even if it worked just for tab switching, it would be useful.