Add wrapper for game mode

src/system/unlockables.ts

@@ -1,4 +1,4 @@
-import { GameMode, gameModeNames } from "../game-mode";
+import { GameModes, gameModes } from "../game-mode";
 
 export enum Unlockables {
   ENDLESS_MODE,
@@ -9,10 +9,10 @@ export enum Unlockables {
 export function getUnlockableName(unlockable: Unlockables) {
   switch (unlockable) {
     case Unlockables.ENDLESS_MODE:
-      return `${gameModeNames[GameMode.ENDLESS]} Mode`;
+      return `${gameModes[GameModes.ENDLESS].getName()} Mode`;
     case Unlockables.MINI_BLACK_HOLE:
       return 'Mini Black Hole';
     case Unlockables.SPLICED_ENDLESS_MODE:
-      return `${gameModeNames[GameMode.SPLICED_ENDLESS]} Mode`;
+      return `${gameModes[GameModes.SPLICED_ENDLESS].getName()} Mode`;
   }
 }