Api/notification create removal

[rgomezp]

One line summary

Remove sendNotification API calls and implement local notifications.

Description

We removed all instances of the sendNotification API calls to clean up dead code. The notification system has been shifted to use local notifications.

MainHelper

• Added showLocalNotification to MainHelper for the welcome notification mechanism, as we no longer have sendSelfNotification

EventHelper

• Updated EventHelper to use the MainHelper local notification.

Index.html

• Added welcome notification configuration.

SDK Version

• Updated SDK to version 160202.

Systems Affected

• [x] WebSDK
• [ ] Backend
• [ ] Dashboard

Validation

Tested locally:

• open webSDK sandbox with an app using custom code
• configure index.html to send a welcome notification
• subscribe

Checklist

• [x] All the automated tests pass or I explained why that is not possible
• [x] I have personally tested this on my machine or explained why that is not possible
• [ ] I have included test coverage for these changes or explained why they are not needed

Programming Checklist Interfaces:

• [x] Don't use default export
• [x] New interfaces are in model files

Functions:

• [x] Don't use default export
• [x] All function signatures have return types
• [x] Helpers should not access any data but rather be given the data to operate on.

Typescript:

• [x] No Typescript warnings
• [x] Avoid silencing null/undefined warnings with the exclamation point

Other:

• [x] Iteration: refrain from using elem of array syntax. Prefer forEach or use map
• [ ] Avoid using global OneSignal accessor for context if possible. Instead, we can pass it to function/constructor so that we don't call OneSignal.context

Screenshots

Info

Checklist

• [ ] I have included screenshots/recordings of the intended results or explained why they are not needed

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