feat: remove type labels from References and add default icon for Courses

static/css/main.css

@@ -809,8 +809,11 @@ iconify-icon {
 
 /* Courses */
 .course-item {
-    margin-bottom: 1rem;
-    padding-bottom: 0.8rem;
+    display: flex;
+    gap: 1.2rem;
+    align-items: flex-start;
+    margin-bottom: 2.5rem;
+    padding-bottom: 2rem;
     border-bottom: 1px solid rgba(0, 0, 0, 0.1);
 }
 
@@ -820,6 +823,23 @@ iconify-icon {
     margin-bottom: 0;
 }
 
+.course-icon {
+    flex-shrink: 0;
+    width: 60px;
+    height: 60px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
+
+.default-course-icon {
+    color: #999;
+}
+
+.course-content {
+    flex: 1;
+}
+
 .course-item strong {
     font-size: 0.95em;
     color: var(--text-dark);