Introduce device flow

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

priv/repo/migrations/20230216151638_add_device_flow_support.exs

@@ -0,0 +1,10 @@
+defmodule Mobilizon.Storage.Repo.Migrations.AddDeviceFlowSupport do
+  use Ecto.Migration
+
+  def change do
+    alter table(:application_tokens) do
+      add(:status, :string, default: :pending, null: false)
+      add(:scope, :string)
+    end
+  end
+end