Pihole App not compatible with pihole v6

[Jvanaselja]

Pihole v6's API has been rewritten and the app is no longer compatible.

[danielsitnik]

@siva801 I believe this app was created by you, so you might wanna push an update.

[mwoolweaver]

more information about the new API can be found here

https://docs.pi-hole.net/api/

https://ftl.pi-hole.net/development/docs/