Polishing and finishing multiplayer

Redirect users back after redirecting them to login page
Get back ability to run project in a dev mode
Show button to enter game for a player 2 only when the game is started
Show usernames on scores, in singleplayer usernames are "black player" and "white player" respectively
Show which turn
If history contains records, load game (put stones, scores and decide whether player must wait for opponent or it's his turn now)
Hide "undo move" button in multiplayer mode
Add "home" button at EVERY PAGE
Add share room to player 2 (copy link to the room)
Fix all bugs

Provide feedback