fix: JWT kid/jku lessons (#1949)

* refactor: rewrite hints

Use active voice and fix grammar issues.

* fix: use Thymeleaf `th:action`

* fix: JWT kid/jku lessons

Split the JavaScript into two files they pointed to the same URL

The JWTs are now valid, they parse successfully.

The paths now include `/kid` and `/jku` to make sure the hints match accordingly in the UI. Otherwise `/delete` would pick up both hints from both assignments as the paths overlap.

Closes: #1715

* fix: update to latest pre-commit version

* fix: increase timeouts for server to start during integration tests

src/main/resources/lessons/cia/html/CIA.html

@@ -29,7 +29,7 @@
         <div class="container-fluid">
             <form id="quiz-form" class="attack-form" accept-charset="UNKNOWN"
                   method="POST" name="form"
-                  action="cia/quiz" role="form">
+                  th:action="@{/cia/quiz}" role="form">
                 <div id="q_container"></div>
                 <br />
                 <input name="Quiz_solutions" value="Submit answers" type="SUBMIT"/>