Migrating away from the notion of public/private URL in WorkAdventure Github repository

The notion of public/private repositories (with /_/ and /@/ URLs) is specific to the SAAS version of WorkAdventure.
It would be better to avoid leaking the organization/world/room structure of the private SAAS URLs inside the WorkAdventure Github project.

Rather than sending http://admin_host/api/map?organizationSlug=...&worldSlug=...&roomSlug=...., we are now sending /api/map&playUri=...
where playUri is the full URL of the current game.
This allows the backend to act as a complete router.
The front (and the pusher) will be able to completely ignore the specifics of URL building (with /@/ and /_/ URLs, etc...)
Those details will live only in the admin server, which is way cleaner (and way more powerful).

pusher/src/Controller/IoSocketController.ts

@@ -221,14 +221,12 @@ export class IoSocketController {
                                 memberVisitCardUrl = userData.visitCardUrl;
                                 memberTextures = userData.textures;
                                 if (
-                                    !room.public &&
                                     room.policyType === GameRoomPolicyTypes.USE_TAGS_POLICY &&
                                     (userData.anonymous === true || !room.canAccess(memberTags))
                                 ) {
                                     throw new Error("Insufficient privileges to access this room");
                                 }
                                 if (
-                                    !room.public &&
                                     room.policyType === GameRoomPolicyTypes.MEMBERS_ONLY_POLICY &&
                                     userData.anonymous === true
                                 ) {