CCT: Follow up to #2603 (#2759)

* CCT: Follow up to #2603

In #2603 we rebalanced ccts to spawn 3x more of them, and reduce the rewards by the same fact of 3.

The hash exchange multipliers were unchanged, resulting in a 3x nerf to hashnet's cct generation.

In this PR i change the cost per level to (almost) a third of the current cost - noting 200/3 is ugly and no other scale changes by a non factor of 10 currently. It could be `70` instead of `65`, but I feel this slight buff is not excessive for being a closer "round value". Another alternative is to spawn 3x ccts at once, and change the description too.

I chose this option as the least "invasive" to player perceptions.

* Feedback

src/Hacknet/data/HashUpgradesMetadata.tsx

@@ -106,7 +106,7 @@ export const HashUpgradesMetadata: HashUpgradeParams[] = [
     value: 10,
   },
   {
-    costPerLevel: 200,
+    costPerLevel: 25,
     desc: "Generate a random Coding Contract somewhere on the network",
     name: HashUpgradeEnum.GenerateCodingContract,
     effectText: (level: number): JSX.Element | null => <>Generated {level} contracts.</>,