Disable cursor events on images (interferes with drag/drop)

public/static/css/chat.css

@@ -6,6 +6,12 @@ body {
     min-height: 100vh;
 }
 
+/* No dragging images - it plays wrongly with the drag/drop image sharing feature
+   and users can accidentally share in chat by dragging an on-page image */
+img {
+    pointer-events: none;
+}
+
 .float-right {
     float: right;
 }