list-processes (`process-menu-mode`) needs evilification.

Currently it starts in `normal` mode, and masks things like `q` for quitting the mode.

Should just be:

```
(add-to-list 'evil-emacs-state-modes 'process-menu-mode)
(spacemacs|evilify 'process-menu-mode)
```

But I'm not quite sure where you would want to put it.
