Fixing NPM package generation

The generation was broken due to the refactoring in several classes (some of them where not properly exported).
Also, trying to generate the NPM package on every build now (to detect issues).

front/src/Api/iframe/chat.ts

@@ -1,30 +1,30 @@
-import type { ChatEvent } from '../Events/ChatEvent'
-import { isUserInputChatEvent, UserInputChatEvent } from '../Events/UserInputChatEvent'
-import { IframeApiContribution, sendToWorkadventure } from './IframeApiContribution'
+import type { ChatEvent } from "../Events/ChatEvent";
+import { isUserInputChatEvent, UserInputChatEvent } from "../Events/UserInputChatEvent";
+import { IframeApiContribution, sendToWorkadventure } from "./IframeApiContribution";
 import { apiCallback } from "./registeredCallbacks";
-import {Subject} from "rxjs";
+import { Subject } from "rxjs";
 
 const chatStream = new Subject<string>();
 
-class WorkadventureChatCommands extends IframeApiContribution<WorkadventureChatCommands> {
-
-    callbacks = [apiCallback({
-        callback: (event: UserInputChatEvent) => {
-            chatStream.next(event.message);
-        },
-        type: "userInputChat",
-        typeChecker: isUserInputChatEvent
-    })]
-
+export class WorkadventureChatCommands extends IframeApiContribution<WorkadventureChatCommands> {
+    callbacks = [
+        apiCallback({
+            callback: (event: UserInputChatEvent) => {
+                chatStream.next(event.message);
+            },
+            type: "userInputChat",
+            typeChecker: isUserInputChatEvent,
+        }),
+    ];
 
     sendChatMessage(message: string, author: string) {
         sendToWorkadventure({
-            type: 'chat',
+            type: "chat",
             data: {
-                'message': message,
-                'author': author
-            }
-        })
+                message: message,
+                author: author,
+            },
+        });
     }
 
     /**
@@ -35,4 +35,4 @@ class WorkadventureChatCommands extends IframeApiContribution<WorkadventureChatC
     }
 }
 
-export default new WorkadventureChatCommands()
+export default new WorkadventureChatCommands();