Fix bugs

[worms19]

• when creating a room, make the user join it directly in one request, to avoid websocket conflicts (check if room is defined before joining it)

• when refreshing the page when connected in a room, directly connect to the room by setting the right state

• on nextWord socket msg, send only the next word, not all the wordsOfRound

• on addWord socket msg, don't broadcast all the words to the players, just send the number of words

• decrease the number of words per player bugs when words are already set

• we need to send only the word to guess to the active player : send also total number of words and number of words remaining

• when joining a room we need to update the url without redirection

• reformate the gamestate object by centralizing the data in the room object

• Disconnect inactive sockets (after xx min)