Add more verbose description for stats + i18n

frontend/src/app/components/mining-dashboard/mining-dashboard.component.html

@@ -4,7 +4,10 @@
 
     <!-- Temporary stuff here - Will be moved to a component once we have more useful data to show -->
     <div class="col">
-      <div class="main-title">Reward stats</div>
+      <div class="main-title">
+        <span i18n="mining.reward-stats">Reward stats</span>&nbsp;
+        <span style="font-size: xx-small" i18n="mining.144-blocks">(144 blocks)</span>
+      </div>
       <div class="card-wrapper">
         <div class="card" style="height: 123px">
           <div class="card-body more-padding">