Enable the sort-keys eslint rule (#1746)

## Description:

Enable the `sort-keys` eslint rule.

Fixes #1629

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced
- [ ] I have read and accepted the CLA agreement (only required once).

src/server/GameManager.ts

@@ -39,16 +39,16 @@ export class GameManager {
       Date.now(),
       this.config,
       {
-        gameMap: GameMapType.World,
-        gameType: GameType.Private,
+        bots: 400,
         difficulty: Difficulty.Medium,
         disableNPCs: false,
+        disabledUnits: [],
+        gameMap: GameMapType.World,
+        gameMode: GameMode.FFA,
+        gameType: GameType.Private,
         infiniteGold: false,
         infiniteTroops: false,
         instantBuild: false,
-        gameMode: GameMode.FFA,
-        bots: 400,
-        disabledUnits: [],
         ...gameConfig,
       },
       creatorClientID,