Fix the spawn stuff

Turned on the video for the client main menu,
fixed error with cannon missing link for text

Added the how to play back into the client menu,
Fixed the block spawning issue (ran about 10 rounds with no errors),
Added another counter for the cannon so it shows both sides,
Removed some Debugs,
Made the fog not static,
Players can sucessfully disconnect from the game - their character is also removed and the server doesnt wait for their input

Also made it so that players who fall behind the camera will lose a life & respawn, as intended.

Added a overlay/shadow to the lobby names to make theme easier to read,
Added a coloured background and animal sprite to the client background so players remember who they are

also commented out some debug.log stuff

also started looking into handling a client disconnecting and removing them from the client list to avoid errors

Fix crystal and boulder prefab and loss of life

checked max players (it was already 8?!?),
fixed timing on the boulder and crystals - less inbetween wait time = less time between rounds