Add support for removed block (#1158)

Signed-off-by: Ronny Orot <ronny.orot@gmail.com>

internal/command/format/format.go

@@ -34,6 +34,8 @@ func DiffActionSymbol(action plans.Action) string {
 		return "  [yellow]~[reset]"
 	case plans.NoOp:
 		return "   "
+	case plans.Forget:
+		return "  [red].[reset]"
 	default:
 		return "  ?"
 	}