Add logos to blocks and test transactions pages

frontend/src/app/components/test-transactions/test-transactions.component.html

@@ -1,5 +1,8 @@
 <div class="container-xl">
-  <h1 class="text-left" i18n="shared.test-transactions|Test Transactions">Test Transactions</h1>
+  <div style="display: flex; width: 100%; align-items: center;">
+    <h1 class="text-left" i18n="shared.test-transactions|Test Transactions">Test Transactions</h1>
+    <app-svg-images name="blocks-3-2" style="width: 275px; max-width: 90%; margin-top: -9px"></app-svg-images>
+  </div>
 
   <form [formGroup]="testTxsForm" (submit)="testTxsForm.valid && testTxs()" novalidate>
     <label for="maxfeerate" i18n="test.tx.raw-hex">Raw hex</label>