Various updates to Privacy Policy

* Add mention of DPO
* Change email to privacy@feneas.org (not yet functional)
* Add some text about Federation, Federated and Federated Data.
* Add some text about Content

Set to come effective 15th October to give time to send update warning.
2 jobs for privacy-policy-updates in 57 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #4666
test

00:00:57

failed #4663
test

01:14:21