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/player.ts

@@ -1,29 +1,29 @@
-import {IframeApiContribution, sendToWorkadventure} from "./IframeApiContribution";
-import type {HasPlayerMovedEvent, HasPlayerMovedEventCallback} from "../Events/HasPlayerMovedEvent";
-import {Subject} from "rxjs";
-import {apiCallback} from "./registeredCallbacks";
-import {isHasPlayerMovedEvent} from "../Events/HasPlayerMovedEvent";
+import { IframeApiContribution, sendToWorkadventure } from "./IframeApiContribution";
+import type { HasPlayerMovedEvent, HasPlayerMovedEventCallback } from "../Events/HasPlayerMovedEvent";
+import { Subject } from "rxjs";
+import { apiCallback } from "./registeredCallbacks";
+import { isHasPlayerMovedEvent } from "../Events/HasPlayerMovedEvent";
 
 const moveStream = new Subject<HasPlayerMovedEvent>();
 
-class WorkadventurePlayerCommands extends IframeApiContribution<WorkadventurePlayerCommands> {
+export class WorkadventurePlayerCommands extends IframeApiContribution<WorkadventurePlayerCommands> {
     callbacks = [
         apiCallback({
-            type: 'hasPlayerMoved',
+            type: "hasPlayerMoved",
             typeChecker: isHasPlayerMovedEvent,
             callback: (payloadData) => {
                 moveStream.next(payloadData);
-            }
+            },
         }),
-    ]
+    ];
 
     onPlayerMove(callback: HasPlayerMovedEventCallback): void {
         moveStream.subscribe(callback);
         sendToWorkadventure({
-            type: 'onPlayerMove',
-            data: null
-        })
+            type: "onPlayerMove",
+            data: null,
+        });
     }
 }
 
-export default new WorkadventurePlayerCommands();
+export default new WorkadventurePlayerCommands();