Add separate keybindings for confirmMenu and confirmSuggestion

It seems useful to have the flexibility to remap "enter" in confirmations to
"y", but keep "enter" for menus and suggestions (even though we sometimes use
menus as confirmations, but it's still good to give users the choice).

pkg/gui/controllers/suggestions_controller.go

@@ -32,7 +32,7 @@ func NewSuggestionsController(
 func (self *SuggestionsController) GetKeybindings(opts types.KeybindingsOpts) []*types.Binding {
 	bindings := []*types.Binding{
 		{
-			Key:               opts.GetKey(opts.Config.Universal.Confirm),
+			Key:               opts.GetKey(opts.Config.Universal.ConfirmSuggestion),
 			Handler:           func() error { return self.context().State.OnConfirm() },
 			GetDisabledReason: self.require(self.singleItemSelected()),
 		},