Change deprecated panel made by angular to latest version made by react

[yjszk]

official info:
https://grafana.com/docs/grafana/latest/developers/angular_deprecation/

file:
https://github.com/domainaware/parsedmarc/blob/master/grafana/Grafana-DMARC_Reports.json

[seanthegeek]

@yjszk Thanks for the call out. I use Splunk, so it would be great if someone else could complete the Grafana migration steps documented in the link above and contribute the changes here in a Pull Request.