fix: Update icon size in course outline container cards

Author: ChrisChV

src/course-outline/card-header/CardHeader.scss

@@ -6,7 +6,7 @@
     justify-content: flex-start;
     padding: 0;
     flex: 1 1 0;
-    height: 1.5rem;
+    height: 1.75rem;
     margin-right: .25rem;
     background: transparent;
     color: var(--pgn-color-black);