Video Section Admin Bugs

[MatthiasReumann]

Motivation and Context

• Resolves #1123 (Allow the deletion of video sections for which no thumbnail exists)
• Resolves #1124 (Firefox still allows letters in <input type="number"> fields. Manual validation via regex necessary)

Steps for Testing

• 1 Admin
• 1 Course
• Firefox

1. Log in
2. Navigate to Admin Course Page
3. Type a letter into one of the number fields. Shouldn't work anymore.
4. Create Video Section
5. Publish Video Section
6. Delete Video Section
7. 🎉

[github-actions[bot]]

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Logins

| Kurs1 | Kurs2 | Kurs3 | Kurs4 | | ---------------------------------------- | ------------------------- | ------------------------- | ------------------------- | | public | public | loggedin | enrolled | | prof1 | prof1 | prof2 | prof1
prof2 | | student1
student2
student3 | student1
student2 | student2
student3 | student1
student2 |