Create node rankings page with 3 different rankings

frontend/src/app/interfaces/node-api.interface.ts

@@ -177,4 +177,15 @@ export interface ITopNodesPerCapacity {
 export interface INodesRanking {
   topByCapacity: ITopNodesPerCapacity[];
   topByChannels: ITopNodesPerChannels[];
+}
+
+export interface IOldestNodes {
+  publicKey: string,
+  alias: string,
+  firstSeen: number,
+  channels?: number,
+  capacity: number,
+  updatedAt?: number,
+  city?: any,
+  country?: any,
 }