Add match rate to block page

frontend/src/app/components/block/block.component.ts

@@ -47,6 +47,7 @@ export class BlockComponent implements OnInit, OnDestroy {
   transactionsError: any = null;
   overviewError: any = null;
   webGlEnabled = true;
+  indexingAvailable = false;
 
   transactionSubscription: Subscription;
   overviewSubscription: Subscription;
@@ -86,6 +87,9 @@ export class BlockComponent implements OnInit, OnDestroy {
       this.timeLtr = !!ltr;
     });
 
+    this.indexingAvailable = (this.stateService.env.BASE_MODULE === 'mempool' &&
+      this.stateService.env.MINING_DASHBOARD === true);
+
     this.txsLoadingStatus$ = this.route.paramMap
       .pipe(
         switchMap(() => this.stateService.loadingIndicators$),