Have chat messages go through the server even when sent to oneself.

static/sfu.js

@@ -1108,7 +1108,6 @@ function handleInput() {
             value: message,
             me: me,
         });
-        addToChatbox(myid, username, message, me);
     } catch(e) {
         console.error(e);
         displayError(e);

webclient.go

@@ -945,7 +945,7 @@ func handleClientMessage(c *webClient, m clientMessage) error {
 		}
 	case "chat":
 		c.group.addToChatHistory(m.Id, m.Username, m.Value, m.Me)
-		clients := c.group.getClients(c)
+		clients := c.group.getClients(nil)
 		for _, cc := range clients {
 			cc, ok := cc.(*webClient)
 			if ok {