fix/balance RA map Athena

1. Reduced strategic victory timer from 10 to 3 minutes to increase
pressure on players.
2. Increased the size of the starting islands in order to give a player
more strategic options.

Removed *Options: OpenRA.MapOptions* as seen in
https://github.com/OpenRA/OpenRA/pull/3939. Checked all starting
positions in-Game.

mods/ra/maps/koth-athena/map.yaml

@@ -74,10 +74,10 @@ Actors:
 		Location: 131,230
 		Owner: Neutral
 	Actor14: oilb
-		Location: 232,71
+		Location: 230,72
 		Owner: Neutral
 	Actor13: oilb
-		Location: 232,185
+		Location: 230,186
 		Owner: Neutral
 	Actor8: oilb
 		Location: 29,72
@@ -2110,7 +2110,7 @@ Rules:
 		-Health:
 	Player:
 		StrategicVictoryConditions:
-			TicksToHold: 15000
+			TicksToHold: 4500
 			ResetOnHoldLost: true
 			RatioRequired: 1
 			CriticalRatioRequired: 1