poa: show staking check icon instead of non existent hashrate

src/js/filters.js

@@ -75,6 +75,13 @@ angular.module('netStatsApp.filters', [])
 		return $sce.trustAsHtml('<span class="small">' + filter('number')(result.toFixed(1)) + ' <span class="small-hash">' + unit + 'H/s</span></span>');
 	};
 }])
+.filter('stakingFilter', ['$sce', '$filter', function($sce, filter) {
+	return function(hashes, isMining) {
+		if( !isMining )
+			return $sce.trustAsHtml('<i class="icon-cancel"></i>');
+		return $sce.trustAsHtml('<i class="icon-check"></i>');
+	};
+}])
 .filter('totalDifficultyFilter', function() {
 	return function(hashes) {
 		var result = hashes;

src/views/index.jade

@@ -110,7 +110,7 @@ block content
             th.th-latency
               i.icon-clock(data-toggle="tooltip", data-placement="top", title="Node latency", ng-click="orderTable(['stats.latency'], false)")
             th
-              i.icon-mining(data-toggle="tooltip", data-placement="top", title="Is mining", ng-click="orderTable(['-stats.hashrate'], false)")
+              i.icon-mining(data-toggle="tooltip", data-placement="top", title="Is staking", ng-click="orderTable(['-stats.hashrate'], false)")
             th
               i.icon-group(data-toggle="tooltip", data-placement="top", title="Peers", ng-click="orderTable(['-stats.peers'], false)")
             th
@@ -146,7 +146,7 @@ block content
               div.small(ng-bind-html="node.info.node | nodeVersion")
             td(class="{{ node.readable.latencyClass }}")
               span.small {{ node.readable.latency }}
-            td(class="{{ node.stats.mining | hashrateClass : node.stats.active }}", ng-bind-html="node.stats.hashrate | hashrateFilter : node.stats.mining")
+            td(class="{{ node.stats.mining | hashrateClass : node.stats.active }}", ng-bind-html="node.stats.hashrate | stakingFilter : node.stats.mining")
             td(class="{{ node.stats.peers | peerClass : node.stats.active }}", style="padding-left: 11px;") {{node.stats.peers}}
             td(style="padding-left: 15px;") {{node.stats.pending}}
             td(class="{{ node.stats | blockClass : bestBlock }}")