Add account_approval_required instance setting

config/config.exs

@@ -205,6 +205,7 @@ config :pleroma, :instance,
   registrations_open: true,
   invites_enabled: false,
   account_activation_required: false,
+  account_approval_required: false,
   federating: true,
   federation_incoming_replies_max_depth: 100,
   federation_reachability_timeout_days: 7,

config/description.exs

@@ -665,6 +665,11 @@ config :pleroma, :config_description, [
         type: :boolean,
         description: "Require users to confirm their emails before signing in"
       },
+      %{
+        key: :account_approval_required,
+        type: :boolean,
+        description: "Require users to be manually approved by an admin before signing in"
+      },
       %{
         key: :federating,
         type: :boolean,