Show notification along with sound

[il3ven]

Is your feature request related to a problem? Please describe.
It is possible that laptop is on mute and I am not able to hear the alert.

Describe the solution you'd like
A notification through the browser will solve the problem.

Describe alternatives you've considered
None

Additional context
None

I can open a simple PR for this. The idea is to ask for notification permission on load. Modify the play function to show notification along with playing a sound.

[neelpy]

Please add a PR for this

[Nikhil27b]

Solved #20