* Remove Raspberry pi Docker file
* Remove old show-source/solution and plan button
* Remove commented out code
* Improve navigation
* Remove underline from navigation and remove margin of left navigation button
* Make arrow a bit smaller so it aligns a bit better with the navigation bar itself
* Remove old code from UI
* Remove old code
* Remove old functions
* Remove unnecessary divs
* Remove logging to console
* Clear lesson messages (checkmark, output text etc) when lesson resets
* initial cut on XSS, need to add some tests still
* initial unit tests for assignment endpoints
* updating header comment license thingy
* comment, clean up
* Stubs for security unit test
* Additional Unit Testing
* isEncoded and isNotEncoded Unit Tests added
* http-proxies updates
* update for XXE solutions
* Work-around to handle special chars in action ... currently to be able to match {userId} in hint creation/assignment for IDOR
* IDOR hints updated
* mitigation content update
* mitigation content update ... 2
* Lesson Overview updates
* including restart lesson fix for lesson overview
Squashing and merging ...
* Each assigment should have the options to have its own set of hints #278
* Updating lessons due to changes from #278
* Enable i18n client side #312
* IDOR move hints to assignment and enable i18n #312
- Basic overview of all the assignments needed to be solved in a lesson
- Clicking on a link will jump to the correct page with the assignment
- Lesson completed also updates lesson overview immediately
