Show getnetworkhashps core result in dashboard + update unit formatting

backend/src/routes.ts

@@ -630,6 +630,7 @@ class Routes {
       res.json({
         hashrates: hashrates,
         difficulty: difficulty,
+        currentHashrate: await bitcoinClient.getNetworkHashPs()
       });
     } catch (e) {
       res.status(500).send(e instanceof Error ? e.message : e);

frontend/src/app/components/hashrate-chart/hashrate-chart.component.html

@@ -5,8 +5,7 @@
       <div class="item">
         <h5 class="card-title" i18n="mining.hashrate">Hashrate</h5>
         <p class="card-text">
-          {{ hashrates.currentHashrate | amountShortener }}
-          <span class="symbol">hashes/sec</span>
+          {{ hashrates.currentHashrate | amountShortener: 1 : 'H/s' }}
         </p>
       </div>
       <div class="item">

frontend/src/app/components/hashrate-chart/hashrate-chart.component.ts

@@ -125,7 +125,7 @@ export class HashrateChartComponent implements OnInit {
                 return {
                   blockCount: parseInt(response.headers.get('x-total-count'), 10),
                   currentDifficulty: Math.round(data.difficulty[data.difficulty.length - 1].difficulty * 100) / 100,
-                  currentHashrate: data.hashrates[data.hashrates.length - 1].avgHashrate,
+                  currentHashrate: data.currentHashrate
                 };
               }),
               retryWhen((errors) => errors.pipe(