allow to disable text signature via account prefs

app/controllers/account_configs_controller.rb

@@ -0,0 +1,32 @@
+# frozen_string_literal: true
+
+class AccountConfigsController < ApplicationController
+  before_action :load_account_config
+  authorize_resource :account_config
+
+  ALLOWED_KEYS = [
+    AccountConfig::ALLOW_TYPED_SIGNATURE,
+    AccountConfig::FORCE_MFA
+  ].freeze
+
+  def create
+    @account_config.update!(account_config_params)
+
+    head :ok
+  end
+
+  private
+
+  def load_account_config
+    return head :not_found unless ALLOWED_KEYS.include?(account_config_params[:key])
+
+    @account_config =
+      AccountConfig.find_or_initialize_by(account: current_account, key: account_config_params[:key])
+  end
+
+  def account_config_params
+    params.required(:account_config).permit!.tap do |attrs|
+      attrs[:value] = attrs[:value] == '1' if attrs[:value].in?(%w[1 0])
+    end
+  end
+end

app/controllers/mfa_force_controller.rb

@@ -1,20 +0,0 @@
-# frozen_string_literal: true
-
-class MfaForceController < ApplicationController
-  before_action :load_account_config
-  authorize_resource :account_config
-
-  def create
-    @account_config.update!(value: !@account_config.value)
-
-    redirect_back fallback_location: settings_users_path,
-                  notice: "Force 2FA has been #{@account_config.value ? 'enabled' : 'disabled'}."
-  end
-
-  private
-
-  def load_account_config
-    @account_config =
-      AccountConfig.find_or_initialize_by(account: current_account, key: AccountConfig::FORCE_MFA)
-  end
-end