As a student, I want to be able to resign from a class

Flow

• I go to OpenPaas website
• I logged in
• I open the module list
• I click on moodle 'icon'
• I can click on a tab/button/(other way) to acces to the list of registered classes
• I can see a button/(other way) to resign from a class
• The system shall ask me a confirmation to resign from the class

Warning: The button shall be only visible for classes I am already registered