play: Fix getting the same skins over and over

Every time I started the server I would spawn with the same skin, over 10 times in a row. math.randomseed fixes this garbage randomness.

Author: ArranTuna

[gamemodes]/[play]/play/play_players.lua

@@ -2,12 +2,11 @@ local spawnsCount = #playerSpawns
 local skinsCount = #playerSkins
 
 function playSpawnPlayer(playerElement)
-	local validElement = isElement(playerElement)
-
-	if not validElement then
+	if not isElement(playerElement) then
 		return false
 	end
-
+	
+	math.randomseed(getTickCount()) -- Fix getting exact same skins over and over
 	local randomSpawn = math.random(spawnsCount)
 	local spawnData = playerSpawns[randomSpawn]
 	local posX, posY, posZ, rotX = unpack(spawnData)