#68 - Student interface for answering tests frontend

[AmonDeShir]

Should close #63 and close #71.

• [x] UI for answering tests
• [x] Message box that warns the user when attempting to submit a test with unanswered questions.
• [x] Implement reaction to the end of the test timer (auto-submit).
• [x] Implement functionality for early test submission via the "Oddaj test" button. (backend)

Desktop

Unanswered questions

Timeout

Result

Mobile

[dawidrudnik]

This is only a suggestion. It will be better when time will be always seen for user not only on top of page.

[AmonDeShir]

What is this number?

Fixed