Draw front lines on the react map.

https://github.com/dcs-liberation/dcs_liberation/issues/2039

client/src/app/store.ts

@@ -2,12 +2,14 @@ import { Action, ThunkAction, configureStore } from "@reduxjs/toolkit";
 
 import controlPointsReducer from "../api/controlPointsSlice";
 import flightsReducer from "../api/flightsSlice";
+import frontLinesReducer from "../api/frontLinesSlice";
 import supplyRoutesReducer from "../api/supplyRoutesSlice";
 import tgosReducer from "../api/tgosSlice";
 
 export const store = configureStore({
   reducer: {
     flights: flightsReducer,
+    frontLines: frontLinesReducer,
     controlPoints: controlPointsReducer,
     supplyRoutes: supplyRoutesReducer,
     tgos: tgosReducer,