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/core/pathfinding/PathFinding.ts

@@ -148,6 +148,7 @@ export class PathFinder {
     }
 
     if (this.game.manhattanDist(curr, dst) < dist) {
+      // eslint-disable-next-line sort-keys
       return { type: PathFindResultType.Completed, node: curr };
     }
 
@@ -164,6 +165,7 @@ export class PathFinder {
         if (tile === undefined) {
           throw new Error("missing tile");
         }
+        // eslint-disable-next-line sort-keys
         return { type: PathFindResultType.NextTile, node: tile };
       }
     }