fix: app crash when switching to 3d

Warning: this is only a hack.
With previous way of switcjing to 3d mode, the app crash because it fails
to load the igc-xc-score library (issue with collections lib: can't clone
object).
I noticed that when you directly load the /3d url in the browser, there
is no crash. So this hack uses this behaviour.

apps/fxc-front/src/app/components/ui/main-menu.ts

@@ -7,7 +7,7 @@ import { when } from 'lit/directives/when.js';
 import { UnsubscribeHandle } from 'micro-typed-events';
 import { connect } from 'pwa-helpers';
 import { requestCurrentPosition } from '../../logic/geolocation';
-import { ParamNames, addUrlParamValues, pushCurrentState } from '../../logic/history';
+import { addUrlParamValues, getSearchParams, ParamNames, pushCurrentState } from '../../logic/history';
 import * as msg from '../../logic/messages';
 import { uploadTracks } from '../../logic/track';
 import { DistanceUnit, formatUnit } from '../../logic/units';
@@ -526,6 +526,10 @@ export class ViewItems extends connect(store)(LitElement) {
   private async handleSwitch() {
     store.dispatch(setApiLoading(true));
     await maybeHideSidePane();
+    if (!store.getState().app?.view3d){
+      // FIXME: this is only a hack to avoid application crash when switching to 3D mode.
+      window.open(`/3d?${getSearchParams().toString()}`, '_self');
+    }
   }
 
   protected createRenderRoot(): HTMLElement {