Add file uploads

client-web/index.css

@@ -170,6 +170,12 @@ body {
     width: 100%;
 }
 
+.file {
+    float: left;
+    border-radius: 10px;
+    margin: 5px 0;
+}
+
 /* Create a container for message input and send button */
 .input-container {
     display: flex;