dead keys can't be handled via key bindings

[guillermooo]

Context: Vim extension for VSC.

We try to handle all keys via key bindings so that we can process them. It seems that this suppresses dead keys.

For example, we handle a in a key binding. As a consequence, ´a does not produce á as expected, but simply a.

[alexdima]

@guillermooo Please see https://github.com/alexandrudima/vscode-vim if you are authoring a vim emulation extension for VS Code - it shows how to capture typed characters (not through keybinding rules).