feat: No app name

Also add a custom event object in the example

example/src/index.js

@@ -1,7 +1,6 @@
 import { LenraApp } from '@lenra/client';
 
 const app = new LenraApp({
-    appName: "Example Client",
     clientId: "XXX-XXX-XXX",
 });
 
@@ -18,7 +17,7 @@ app.connect().then(() => {
             output.textContent = data.value;
             button.onclick = () => {
                 output.classList.add("loading");
-                route.callListener(data.onIncrement).then(() => {
+                route.callListener({code: data.onIncrement.code, event: {value: "custom value"}}).then(() => {
                     output.classList.remove("loading");
                 });
             };

src/application.ts

@@ -3,7 +3,7 @@ import { Callback } from "./route.js";
 import LenraSocket, { LenraSocketOpts } from "./socket.js";
 
 type LenraAppOpts = {
-    appName: string,
+    appName?: string,
     clientId: string,
     redirectUri?: string,
     scopes?: string[],

src/socket.ts

@@ -2,7 +2,7 @@ import { Socket } from 'phoenix';
 import LenraRoute, { Callback } from './route.js';
 
 export type LenraSocketOpts = {
-    appName: string,
+    appName?: string,
     token: string,
     socketEndpoint: string,
 }