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/chromedevtools/html/ChromeDevTools.html

@@ -24,7 +24,7 @@
         <div class="assignment-success"><i class="fa fa-2 fa-check hidden" aria-hidden="true"></i></div>
         <form class="attack-form" accept-charset="UNKNOWN"
               method="POST" name="DOMFollowUp"
-              action="ChromeDevTools/dummy">
+              th:action="@{/ChromeDevTools/dummy}">
             <input name="successMessage" value="" type="TEXT" />
             <input name="submitMessage" value="Submit" type="SUBMIT"/>
         </form>
@@ -45,7 +45,7 @@
         <div class="assignment-success"><i class="fa fa-2 fa-check hidden" aria-hidden="true"></i></div>
         <form class="attack-form" accept-charset="UNKNOWN"
               method="POST" name="form"
-              action="ChromeDevTools/network">
+              th:action="@{/chromeDevTools/network}">
             <script>
                 // sample custom javascript in the recommended way ...
                 // a namespace has been assigned for it, but you can roll your own if you prefer
@@ -66,7 +66,7 @@
 
         <form class="attack-form" accept-charset="UNKNOWN"
               method="POST" name="form"
-              action="ChromeDevTools/network">
+              th:action="@{/chromeDevTools/network}">
             <table>
                 <tr>
                     <td>What is the number you found:   </td>