Eslint (#998)

## Description:

Enable a few eslint rules:
- `@typescript-eslint/no-empty-object-type`
- `@typescript-eslint/no-require-imports`
- `no-useless-escape`

## 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
- [x] I understand that submitting code with bugs that could have been
caught through manual testing blocks releases and new features for all
contributors

---------

Co-authored-by: Scott Anderson <scottanderson@users.noreply.github.com>

tests/core/executions/SAMLauncherExecution.test.ts

@@ -130,9 +130,7 @@ describe("SAM", () => {
   });
 
   test("two sams should not target twice same nuke", async () => {
-    const sam1 = defender.buildUnit(UnitType.SAMLauncher, game.ref(1, 1), {
-      cooldownDuration: 10,
-    });
+    const sam1 = defender.buildUnit(UnitType.SAMLauncher, game.ref(1, 1), {});
     game.addExecution(new SAMLauncherExecution(defender, null, sam1));
     const sam2 = defender.buildUnit(UnitType.SAMLauncher, game.ref(1, 2), {});
     game.addExecution(new SAMLauncherExecution(defender, null, sam2));