added initial batch of questions

src/pages/domande-esami/index.astro

@@ -10,7 +10,7 @@ const courseQuestionCounts = Object.fromEntries(
     database.questions.reduce((acc, question) => {
         acc.set(question.course, (acc.get(question.course) || 0) + 1)
         return acc
-    }, new Map())
+    }, new Map()),
 )
 ---
 
@@ -33,16 +33,18 @@ const courseQuestionCounts = Object.fromEntries(
                         </h2>
                     </summary>
                     <div class="wide-card-list">
-                        {group.items.map(course => (
-                            <a href={`/domande-esami/${course}`}>
-                                <div class="card">
-                                    <h2>{database.names[course]}</h2>
-                                    <div class="text">
-                                        <p>{courseQuestionCounts[course] || 0} domande</p>
+                        {group.items
+                            .filter(course => courseQuestionCounts[course] > 0)
+                            .map(course => (
+                                <a href={`/domande-esami/${course}`}>
+                                    <div class="card">
+                                        <h2>{database.names[course]}</h2>
+                                        <div class="text">
+                                            <p>{courseQuestionCounts[course] || 0} domande</p>
+                                        </div>
                                     </div>
-                                </div>
-                            </a>
-                        ))}
+                                </a>
+                            ))}
                     </div>
                 </details>
             ))