Make koena connect picture configurable

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

lib/graphql/resolvers/config.ex

@@ -126,7 +126,8 @@ defmodule Mobilizon.GraphQL.Resolvers.Config do
       timezones: Tzdata.zone_list(),
       features: %{
         groups: Config.instance_group_feature_enabled?(),
-        event_creation: Config.instance_event_creation_enabled?()
+        event_creation: Config.instance_event_creation_enabled?(),
+        koena_connect: Config.get([:instance, :koena_connect_link], false)
       },
       rules: Config.instance_rules(),
       version: Config.instance_version(),

lib/graphql/schema/config.ex

@@ -268,6 +268,8 @@ defmodule Mobilizon.GraphQL.Schema.ConfigType do
     field(:event_creation, :boolean,
       description: "Whether event creation is allowed on this instance"
     )
+
+    field(:koena_connect, :boolean, description: "Activate link to Koena Connect")
   end
 
   @desc """