[Feature] Add sound to notifications

[harsimranmaan]

Is your feature request related to a problem? Please describe.
The notification should have a sound

[dk4jo3]

https://material.io/design/sound/sound-resources.html# This is a good resource for sounds.

Something simple should probably do the job.

[harsimranmaan]

Thanks @dk4jo3 . I'll take a look