feat: Add checkbox for sightbar entity + fix build errors

src/pages/Route/route-preview/index.tsx

@@ -1,6 +1,6 @@
 import { useRef, useEffect, useState } from "react";
 
-import { Application, ApplicationRef, extend } from "@pixi/react";
+import { Application, extend } from "@pixi/react";
 import {
   Container,
   Graphics,
@@ -13,7 +13,7 @@ import { Stack } from "@mui/material";
 import { MapDataProvider, useMapData } from "./MapDataContext";
 import { TransformProvider, useTransform } from "./TransformContext";
 import { InfiniteCanvas } from "./InfiniteCanvas";
-import { Sight } from "./Sight";
+
 import { UP_SCALE } from "./Constants";
 import { Station } from "./Station";
 import { TravelPath } from "./TravelPath";