Better default bell sound

[erf]

trafficstars

Abstract

The default bell sound '\u0007' is bad to my ears

Motivation

Change default bell sound to default macOS sound

Specification

Use same sound as on Terminal.app and iTerm2.app

[whisperity]

In general, it would be better if the default behaviour of the bell was to trigger the DE-specific default notification sound, with the option to override it in Contour.

[Yaraslaut]

I would prefer bell to be disabled by default, also if we know system dependent paths to default bell we can use them

[Yaraslaut]

What if we use this bell sound ? https://commons.wikimedia.org/wiki/File:Bicycle-bell-2.wav