Add optional moderator codes (#2413)

* add column for moderator code

* add interface for moderator access code

* add support for write and update moderator access

* check if correct moderator_code in session

* move access code form into own component

* add support for moderator access code

* add support for moderator access code

* add copy code button for moderator code

* freeze all the things

* add tests for moderator access code

* add helpfer for moderator_access setting

* add setting for moderator access code

* show setting for moderator access code

* add checks for moderator code setting

* use method from room controller for moderator password check

* add tests for login with moderator access code

* add check for moderator code setting

* check if moderator codes are enabled in settings

* only display form for moderator code if enabled in settings

* add newline at end of file

* make check for moderator code available as helper

* align style of join button and access code button

* add localization for moderator codes

* add field for moderator codes

* add field for moderator access code to rooms

* fixes for rubocop

* fix LineLenghts for rubocop

* fix double space

Co-authored-by: Ahmad Farhat <ahmad.af.farhat@gmail.com>

app/controllers/application_controller.rb

@@ -186,6 +186,12 @@ class ApplicationController < ActionController::Base
   end
   helper_method :recording_consent_required?
 
+  # Indicates whether users are allowed to add moderator access codes to rooms
+  def moderator_code_allowed?
+    @settings.get_value("Moderator Access Codes") == "true"
+  end
+  helper_method :moderator_code_allowed?
+
   # Returns a list of allowed file types
   def allowed_file_types
     Rails.configuration.allowed_file_types