[Feature Request] VIM like keybindings

**Is your feature request related to a usage problem (not a bug)? Please describe.**
Basically to reduce at the minimum the usage of the hand killing mouse
**Describe the solution you'd like to see implemented**
Maybe something like Vimium for Firefox or Chrome

**Describe alternatives you've considered**
I tried using a browser with VIM like keybindings but it will be nice to have it in freetube so i don't need to enter to a sketchy site like youtube in my browser.