Fix menupopup

[Peterrahr]

Description

Validates the create and edit menu

What is added/changed/removed

Validates the create and edit menu

Issue/fixes reference

Fixes the following issues

• Create/edit question: The create/edit menu looks like it "went through" while not having answers #148
• Create/edit question: Pop-up closes the question menu #152
• Create/edit question: Answers can be saved without any text #153
• Create/edit question: When creating/editing a questions, it should be checked that the question has at least one correct answer #158
• Create/edit question: Add alert when questionTitle is not provided #164
• Create/edit question: Indicate somehow what fields are required when creating a LiveQuiz #165

Testing

Behat test written for validation when creating a question

Checks

• Updated / added tests for these changes
• PHPunit locally passed
• Codesniffer locally passed
• Behat locally passed