[FEATURE REQ] Allow deletion of example module

[Rllyyy]

To achieve this the example module needs to be added to the localStorage if the user first visits the website.

Caution:

• A user may not visit the homepage first. For example the documentation directly links to the module as an example for each question type

TODO:

• Remove limitation to delete module types_1
• Remove limitation to edit questions of module types_1
• Remove limitation to delete questions of module types_1
• Remove limitation to create module types_1 (Although this behaviour is discouraged)
• Test direct visit to question from external site if the user hasn't been to the website before
• Test addition of types_1 to localStorage on first visit
• Test not adding types_1 to localStorage if user deleted the module