Issue 4960: Ignoring and blocking of contacts should work again (#5657)

Issue 4960: Ignoring and blocking of contacts should work again (#5657)

* Issue 4960: Ignoring and blocking of contacts should work again

* Renamed functions

* This function should be renamed as well.

* We now have a frontend to block and ignore public contacts

* Hide some parts for public contacts

* Removed notices, public contact is now accessible from dirfind as well

* We now show contact conversations and contact posts

* We now use a new conversation mode

* The update functionality is disabled until it will work completely

* Fixing tabs chaos

* Update after posts on the contacts page will now work

* Show connect link