Enable the sort-imports eslint rule (#1849)

## Description:

Enable the `sort-imports` eslint rule.

Fixes #1784

## 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

src/core/execution/TrainExecution.ts

@@ -6,9 +6,9 @@ import {
   Unit,
   UnitType,
 } from "../game/Game";
-import { TileRef } from "../game/GameMap";
+import { OrientedRailroad, getOrientedRailroad } from "../game/Railroad";
 import { RailNetwork } from "../game/RailNetwork";
-import { getOrientedRailroad, OrientedRailroad } from "../game/Railroad";
+import { TileRef } from "../game/GameMap";
 import { TrainStation } from "../game/TrainStation";
 
 export class TrainExecution implements Execution {