feat: Share plugin direct app sharing

[bolivir]

Feature Request

Description

We have a Share plugin where we have the possibility to use the share functionality. The share functionality now always opens the device share modal, i would like it to have a feature so we can pass in a app to share to directly (Just like the social share plugin from cordova has like shareViaWhatsApp)

Platform(s)

• IOS
• Android

Preferred Solution

• Add some methods so we have direct access to some apps like shareViaWhatsApp, that would directly share it to whatsapp when available, or so we can pass in the app name to share too

[matthewbal]

Is there anyone who looked into how to do this or started it already? I might be able to get some time to be able to work on this and get a PR up. We'd also want to share to base64, so I could tackle that at the same time to close #1748