WebApp header updated

tomorrowcities/assets/custom.css

@@ -1,6 +1,6 @@
 header {
-    background-image: url('/static/public/tomorrows-cities-logo-header.svg'); /* Replace 'your-image.jpg' with the path to your image file */
-    background-position: left center; /* Center the background image */
+    background-image: url('/static/public/tomorrows-cities-logo-header.png'); /* Replace 'your-image.jpg' with the path to your image file */
+    background-position: center; /* Center the background image */
     background-repeat: no-repeat; /* Prevent image from repeating */
     height: 200px; /* Set a specific height for the header */
 }