fix image shadow on logos

docs/stylesheets/extra.css

@@ -92,7 +92,7 @@
 }
 
 body {
-  background-image: url("/assets/blossom_valley.jpg");
+  background-image: url("https://raw.githubusercontent.com/gethomepage/homepage/main/docs/assets/blossom_valley.jpg");
   background-size: cover;
   background-attachment: fixed;
   background-position: center;