Refactor. API explanations. UX revamp.

frontend/src/app/components/start/start.component.ts

@@ -1,10 +1,19 @@
-import { Component } from '@angular/core';
+import { Component, OnInit } from '@angular/core';
+import { WebsocketService } from 'src/app/services/websocket.service';
 
 @Component({
   selector: 'app-start',
   templateUrl: './start.component.html',
   styleUrls: ['./start.component.scss']
 })
-export class StartComponent {
+export class StartComponent implements OnInit {
   view: 'blocks' | 'transactions' = 'blocks';
+
+  constructor(
+    private websocketService: WebsocketService,
+  ) { }
+
+  ngOnInit() {
+    this.websocketService.want(['blocks', 'stats', 'mempool-blocks']);
+  }
 }