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/nav.ts

@@ -1,59 +1,56 @@
-import type { GoToPageEvent } from '../Events/GoToPageEvent';
-import type { OpenTabEvent } from '../Events/OpenTabEvent';
-import { IframeApiContribution, sendToWorkadventure } from './IframeApiContribution';
-import type {OpenCoWebSiteEvent} from "../Events/OpenCoWebSiteEvent";
-import type {LoadPageEvent} from "../Events/LoadPageEvent";
-
-
-class WorkadventureNavigationCommands extends IframeApiContribution<WorkadventureNavigationCommands> {
-    callbacks = []
+import type { GoToPageEvent } from "../Events/GoToPageEvent";
+import type { OpenTabEvent } from "../Events/OpenTabEvent";
+import { IframeApiContribution, sendToWorkadventure } from "./IframeApiContribution";
+import type { OpenCoWebSiteEvent } from "../Events/OpenCoWebSiteEvent";
+import type { LoadPageEvent } from "../Events/LoadPageEvent";
 
+export class WorkadventureNavigationCommands extends IframeApiContribution<WorkadventureNavigationCommands> {
+    callbacks = [];
 
     openTab(url: string): void {
         sendToWorkadventure({
-            "type": 'openTab',
-            "data": {
-                url
-            }
+            type: "openTab",
+            data: {
+                url,
+            },
         });
     }
 
     goToPage(url: string): void {
         sendToWorkadventure({
-            "type": 'goToPage',
-            "data": {
-                url
-            }
+            type: "goToPage",
+            data: {
+                url,
+            },
         });
     }
 
     goToRoom(url: string): void {
         sendToWorkadventure({
-            "type": 'loadPage',
-            "data": {
-                url
-            }
+            type: "loadPage",
+            data: {
+                url,
+            },
         });
     }
 
     openCoWebSite(url: string, allowApi: boolean = false, allowPolicy: string = ""): void {
         sendToWorkadventure({
-            "type": 'openCoWebSite',
-            "data": {
+            type: "openCoWebSite",
+            data: {
                 url,
                 allowApi,
                 allowPolicy,
-            }
+            },
         });
     }
 
     closeCoWebSite(): void {
         sendToWorkadventure({
-            "type": 'closeCoWebSite',
-            data: null
+            type: "closeCoWebSite",
+            data: null,
         });
     }
 }
 
-
 export default new WorkadventureNavigationCommands();