Need to be able to track Mobile Push notifications, by user

Description:

We can currently track how many mobile push notifications we are using at cloud.rocket.chat. However, this only gives us usage statistics by month/day, for the entire organization. Our organization needs to be also be able to track stats by individual user.

Steps to reproduce:

1. Log into https://cloud.rocket.chat.
2. Click on workspace
3. We are provided an option to select push notification data by month or by day, only.

Expected behavior:

Since we being billed for our usage, we need more verbose statistics. At a minimum, that would include push notification stats, by USER for each day/month.

Actual behavior:

There is no option that provides this.

Server Setup Information:

• Version of Rocket.Chat Server: 3.6.3
• Operating System: CentOS 7
• Deployment Method: tar
• Number of Running Instances: 2
• DB Replicaset Oplog: Enabled
• NodeJS Version: 12.6.1
• MongoDB Version: 3.6,18

Start from the workspace usage view on cloud.rocket.chat and review how mobile push notification statistics are currently selected by day or month. Define the data and UI needed to show notification usage by individual user for each day or month; done means those user-level statistics are available in the workspace view.