[Node page] Add link to node list per country/isp in node page

frontend/src/app/lightning/node/node.component.ts

@@ -3,6 +3,7 @@ import { ActivatedRoute, ParamMap } from '@angular/router';
 import { Observable } from 'rxjs';
 import { catchError, map, switchMap } from 'rxjs/operators';
 import { SeoService } from 'src/app/services/seo.service';
+import { getFlagEmoji } from 'src/app/shared/graphs.utils';
 import { LightningApiService } from '../lightning-api.service';
 
 @Component({
@@ -51,6 +52,7 @@ export class NodeComponent implements OnInit {
             } else if (socket.indexOf('onion') > -1) {
               label = 'Tor';
             }
+            node.flag = getFlagEmoji(node.iso_code);
             socketsObject.push({
               label: label,
               socket: node.public_key + '@' + socket,