Enable the prefer-destructuring eslint rule (#1858)

## Description:

Enable the `prefer-destructuring` eslint rule.

## 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

tests/InputHandler.test.ts

@@ -79,7 +79,7 @@ describe("InputHandler AutoUpgrade", () => {
         }),
       );
 
-      const calls = mockEmit.mock.calls;
+      const { calls } = mockEmit.mock;
       const lastCall = calls[calls.length - 1];
       expect(lastCall[0]).not.toBeInstanceOf(AutoUpgradeEvent);
     });

tests/Warship.test.ts

@@ -38,7 +38,7 @@ describe("Warship", () => {
   });
 
   test("Warship heals only if player has port", async () => {
-    const maxHealth = game.config().unitInfo(UnitType.Warship).maxHealth;
+    const { maxHealth } = game.config().unitInfo(UnitType.Warship);
     if (typeof maxHealth !== "number") {
       expect(typeof maxHealth).toBe("number");
       throw new Error("unreachable");