Add NodeInfo 2.0 support (in addition to 2.1) and fix validation

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

test/mobilizon_web/controllers/nodeinfo_controller_test.exs

@@ -8,6 +8,15 @@ defmodule MobilizonWeb.NodeInfoControllerTest do
 
     assert json_response(conn, 200) == %{
              "links" => [
+               %{
+                 "href" =>
+                   MobilizonWeb.Router.Helpers.node_info_url(
+                     MobilizonWeb.Endpoint,
+                     :nodeinfo,
+                     "2.0"
+                   ),
+                 "rel" => "http://nodeinfo.diaspora.software/ns/schema/2.0"
+               },
                %{
                  "href" =>
                    MobilizonWeb.Router.Helpers.node_info_url(
@@ -27,10 +36,13 @@ defmodule MobilizonWeb.NodeInfoControllerTest do
     resp = json_response(conn, 200)
 
     assert resp == %{
-             "metadata" => %{"nodeName" => Keyword.get(@instance, :name)},
+             "metadata" => %{
+               "nodeName" => Mobilizon.CommonConfig.instance_name(),
+               "nodeDescription" => Mobilizon.CommonConfig.instance_description()
+             },
              "openRegistrations" => Keyword.get(@instance, :registrations_open),
              "protocols" => ["activitypub"],
-             "services" => %{"inbound" => [], "outbound" => []},
+             "services" => %{"inbound" => [], "outbound" => ["atom1.0"]},
              "software" => %{
                "name" => "mobilizon",
                "version" => Keyword.get(@instance, :version),