Fix style on block hover (#347)

* Fix style on block hover

* Fix style on block hover

Co-authored-by: Eric Lehmann <eric@machinas.com>

frontend/src/app/components/blockchain-blocks/blockchain-blocks.component.scss

@@ -11,6 +11,10 @@
   z-index: 10;
 }
 
+.blockLink:hover {
+  text-decoration: none;
+}
+
 .mined-block {
   position: absolute;
   top: 0px;

frontend/src/app/components/mempool-blocks/mempool-blocks.component.scss

@@ -116,3 +116,7 @@
   left: 0;
   z-index: 10;
 }
+
+.blockLink:hover {
+  text-decoration: none;
+}