Merge branch 'by-approval' into 'develop'

Registrations "by approval" mode

Closes #1931

See merge request pleroma/pleroma!2757

config/description.exs

@@ -661,6 +661,11 @@ 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,
@@ -874,6 +879,14 @@ config :pleroma, :config_description, [
           2048
         ]
       },
+      %{
+        key: :registration_reason_length,
+        type: :integer,
+        description: "Maximum registration reason length. Default: 500.",
+        suggestions: [
+          500
+        ]
+      },
       %{
         key: :external_user_synchronization,
         type: :boolean,