Previously, the Home button, in the case where there is no home bookmark defined, was redirecting to localhost. But some peopl emight not have a localhost domain server running. This PR change the fallback to the Tutorial instead of localhost,
In addition, the tutorial place card wasn't work correctly. (it was trying to use the name instead of the address. I added an exception case for this.
On the place list, the link to a place uses the placename for a local place or the address for a federated or external place
the link on the name was still using directly the address while the other parts (cell background and description) were using the variable.
This PR add the possibility to press "Enter" to initiate a teleportation from the value in the search/address bar of the Places App.
(In addition to the current teleport button)
This is a more intuitive behaviour since everyone is used to this in the web browsers.
