enable mobile push notifications

[islandbitcoin]

Currently working on the latest version of blink, should be able to enable it on flash also.

[Nodirbek75]

@islandbitcoin push notification is working on both android and ios for blink?

[Nodirbek75]

@brh28 Should we copy commits from blink repo to our repo or implement our own? Which one is better for you?

[Nodirbek75]

@brh28 And also, I may need your help to implement Notification Delivery Service (NDS) on the backend using breez notify.

[Nodirbek75]

Notification types:

• [ ] Ibex USD Payment receive
• [ ] Breez BTC Payment receive
• [ ] Ibex USD Onchain confirm
• [ ] Breez BTC Onchain confirm
• [ ] Price change
• [ ] Marketing notification