handle game end scenarios better

[oakmac]

I feel like we could handle game end scenarios better. Some ideas:

• give them a "new game" button
• let them replay their game with the same piece orderings
• let them watch a replay of their game; provide a sliderbar that will allow them to inspect the game at any state
• in battle mode: links to go back to the lobby and / or the dashboard; allow them to watch someone else's game for the rest of the round
• in battle mode: reset their score to 0 for the round and let them start a new game

[Dudemullet]

in battle mode: links to go back to the lobby and / or the dashboard; allow them to watch someone else's game for the rest of the round

:+1:

in battle mode: reset their score to 0 for the round and let them start a new game

I believe this is already the case if they refresh the page after losing. Maybe just give them a button to restart?

In the end, if the player is really good and there is enough time, they could score higher than any player that hasn't lost.

[oakmac]

Still could probably do more here with the game over state, but Commit 0791872 and 53100b1 are a good start.