Change the "select player" selectors to a text fields where the players can enter the name

[kevincardonag]

In the node app you can select the player, it is a bit confusing when users try to start a game and It also has a disadvantage because the second player could enter to a player1’s room, so I think is better to have a username text field to avoid to enter to the wrong room.

Necessary changes:

• Remove the selectors in the home.tsx file
• Create an input field instead
• Adjust the handlePlayerForNewGameChange function to set the setPlayerForNewGame variable properly
• Update the interface of players on the file components/game/types.ts
• Update the useRedirectToGame, GamePage, GameContextProvider functions to allow string instead of int as player
• Save the player1 and player2 name in the database
• Check if there are other functions that receive the player as int
• Check the impact of changing the player as a string in the database and refactor it in case of finding inconsistencies.

[kevincardonag]

solved in the pr #4