feat(android): Add expo config for notification controls

[Arthi-chaud]

Summary

Adding Expo configuration for notification controls on Android

Sources:

• v6 doc: Link

Notes

• First contribution, lmk if the contributed code doesn't comply to norm/coding style
• The plugin is invoked unconditionally because there is not toggle setting for notifications controls, unlike in v6. It might be relevant to add a boolean in the settings to enable/disable the plugin. I can add do that in this PR if need be.

Motivation

Including this will avoid the user to write the configuration themselves.
(It can be a pain for unexperiences users)

Changes

• Add Expo config for notification controls
• Call config function in main plugin

Test plan

• Test using example app
  • Can't manage to build/run it locally, but I added that same config in my project (link) and it works.

[KrzysztofMoch]

Thank you! I did miss that one when implementing notificationControls

[jcolicchio]

I noticed that this plugin has no effect if mainApplication.service is undefined / null; the reference code cited in this PR has an additional line mainApplication.service ??= [] missing from this implementation.

However, this plugin likely should check that the service hasn't already been appended, otherwise the plugin will not be idempotent and will add a new service to the existing manifest every time it's invoked.

Also, the lines adding permissions appear to do nothing in Expo; I believe these permissions are meant to be added to app.json under "android" instead?

@KrzysztofMoch should I open an issue for this apparent bug?