Fix invalid maps

front/src/Connexion/LocalUserStore.ts

@@ -142,6 +142,9 @@ class LocalUserStore {
             localStorage.getItem(lastRoomUrl) ?? window.location.protocol + "//" + window.location.host + START_ROOM_URL
         );
     }
+    removeLastRoomUrl(): void {
+        localStorage.removeItem(lastRoomUrl);
+    }
     getLastRoomUrlCacheApi(): Promise<string | undefined> {
         if (!("caches" in window)) {
             return Promise.resolve(undefined);