destroy subcribe

src/app/modules/overview/map/map.component.ts

-import { AfterViewInit, Component, OnInit } from '@angular/core';
+import {AfterViewInit, Component, OnDestroy, OnInit} from '@angular/core';
 import * as L from 'leaflet';
 import {Subscription} from "rxjs";
 import {SocketService} from "../../../shared/services/socket.service";
   templateUrl: './map.component.html',
   styleUrls: ['./map.component.scss']
 })
-export class MapComponent implements OnInit, AfterViewInit {
+export class MapComponent implements OnInit, AfterViewInit, OnDestroy {
   private map: any;
    houseIcon = L.icon({
      iconUrl: '../../../../assets/images/icon.png',