Add new settings tab for participation processes

- Rename setting keys
- New tab por participation processes
- Hide these settings from features tab

app/controllers/admin/settings_controller.rb

@@ -4,6 +4,7 @@ class Admin::SettingsController < Admin::BaseController
     all_settings = Setting.all.group_by { |setting| setting.type }
     @configuration_settings = all_settings["configuration"]
     @feature_settings = all_settings["feature"]
+    @participation_processes_settings = all_settings["process"]
     @map_configuration_settings = all_settings["map"]
   end