Make SNS notifications human readable

[nclemons78]

Is your feature request related to a problem? Please describe.

We recently upgraded from the original Limit Monitor solution to the new Quota Monitor solution. The original one provided readable emails like:

"AWS-Account : REDACTED || Timestamp : 2022-10-14T01:33:32Z || Limit-Details : {Status:Yellow,Current Usage:810,Limit Name:Roles,Region:-,Service:IAM,Limit Amount:1000}"

The new solution provides emails with JSON contents like:

{"version":"0","id":"REDACTED","detail-type":"Trusted Advisor Check Item Refresh Notification","source":"aws.trustedadvisor","account":"REDACTED","time":"2023-09-20T12:46:31Z","region":"us-east-1","resources":[],"detail":{"check-name":"IAM Roles","check-item-detail":{"Status":"Yellow","Current Usage":"820","Limit Name":"Roles","Region":"-","Service":"IAM","Limit Amount":"1000"},"status":"WARN","resource_id":"","uuid":"REDACTED"}}

Describe the feature you'd like

I would like the emails to be human readable, or suggestions as to what kind of technology this is designed to be consumed by, because JSON via email doesn't really make much sense to me.

[abewub]

Thanks, we have added the request to our backlog.