fix header image

Author: Andreas Schwarz

Diff for: src/custom.css

@@ -9,4 +9,10 @@
     width: 100%;
     height: auto;
     cursor: pointer;
+}
+
+.sidebar-header-image {
+    margin: 10%;
+    width: 80%; /* Make image responsive within the sidebar */
+    height: auto; /* Maintain aspect ratio */
 }

Diff for: theme/index.hbs

@@ -114,6 +114,7 @@
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
+                <img class="sidebar-header-image" src="{{ path_to_root }}/img/misc/spurdo_fbv.png"></img>
                 <mdbook-sidebar-scrollbox>
                 <!-- populated by js -->
                 </mdbook-sidebar-scrollbox>