Modify Game event template

[amitkaplansky]

Expected Behavior

Game event template will not need the refresh script as before, we had conflicts with the chat and the refresh.

Current Behavior

After a player joins an event, a new window automatically opens to provide a confirmation message indicating whether the joining process was successful or not.
Additionally, the main page where the player initiated the joining process undergoes an automatic refresh after 5 seconds.
The purpose of the auto-refresh is to update the player's view and check if their joining status has changed, to check it join event button needs to be presented or remove event.