Feature Request: Minimal for https://developer.android.com/training/notify-user/channels#UpdateChannel implementation

[JayceeZ]

Expected Behaviour

Being able to get attributes:

• Importance
• Sound Uri
  Being able to open Notification Channel settings for User.

Actual Behaviour

Not available (in version 2.3.0)

Reproduce Scenario (including but not limited to)

Code not available

Steps to Reproduce

Try to implement
https://developer.android.com/training/notify-user/channels#UpdateChannel
Not possible

Platform and Version (eg. Android 5.0 or iOS 9.2.1)

Android 8+

(Android) What device vendor (e.g. Samsung, HTC, Sony...)

Any

Cordova CLI version and cordova platform version

cordova --version                                   

9.0.0
cordova platform version android
android 7.1.4

Plugin version

cordova plugin version | grep phonegap-plugin-push

phonegap-plugin-push 2.3.0 "PushPlugin"