Make method in Handler.php to easily change default Server Error message

[lotarbo]

What i mean, in this line

framework/src/Illuminate/Foundation/Exceptions/Handler.php

Line 654 in 90ad97c

'message' => $this->isHttpException($e) ? $e->getMessage() : 'Server Error',

we have 'Server Error' default message, if i want change it or make it translatable, i need redefine method convertExceptionToArray and it looks bad i think.
Maybe add method like

protected function getDefaultServerErrorMessage(): string
{
    return 'Server Error';
}

to do this in more clean way?