How can we use the pre-orderly customised push notifications option in Flet main repository.

[HappyCoder256]

I have seen a certain way to implement the push notifications but it doesn't have a clear documentation. @ndonkoHenri come and please refine that for us.

If u're requesting for the branch, here's is it.

In flet-dev/dev, change the branch to ndonkohenri/notifications