Explorer page with latest blocks. WIP

frontend/src/app/explorer/transaction/transaction.component.html

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+<p>transaction works!</p>

frontend/src/app/explorer/transaction/transaction.component.ts

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+import { Component, OnInit } from '@angular/core';
+
+@Component({
+  selector: 'app-transaction',
+  templateUrl: './transaction.component.html',
+  styleUrls: ['./transaction.component.scss']
+})
+export class TransactionComponent implements OnInit {
+
+  constructor() { }
+
+  ngOnInit() {
+  }
+
+}