Library: optimized notification

[Aryanryn09]

this change is wrt This code uses object shorthand notation to set the properties of the Gio.Notification object, which makes the code more concise and easier to read. It also uses a loop to create and add the Gio.SimpleAction objects, which eliminates some repetition.issue workbenchdev/demos#3

[sonnyp]

This doesn't work. Did you test?

https://github.com/sonnyp/Workbench/blob/main/CONTRIBUTING.md#submitting-a-contribution

Make sure it's working by running Workbench and launching your entry via the Library.

With your changes and when loading the demo, the notification doesn't appear and the following appears in the console:

(re.sonny.Workbench.Devel:4): Gjs-WARNING **: 13:02:03.231: JS ERROR: Error: No property title on GNotification
@file:///tmp/workbench-0B9V11.js:6:22

Also, the file window.js appears to be an error.

Please make sure to review and test your changes before submitting a contribution.