Replacing footer and latest blocks with a stats dashboard.

frontend/src/app/services/state.service.ts

@@ -31,6 +31,7 @@ export class StateService {
   blockTransactions$ = new Subject<Transaction>();
   isLoadingWebSocket$ = new ReplaySubject<boolean>(1);
   vbytesPerSecond$ = new ReplaySubject<number>(1);
+  lastDifficultyAdjustment$ = new ReplaySubject<number>(1);
   gitCommit$ = new ReplaySubject<string>(1);
 
   live2Chart$ = new Subject<OptimizedMempoolStats>();

frontend/src/app/services/websocket.service.ts

@@ -141,6 +141,10 @@ export class WebsocketService {
           this.stateService.vbytesPerSecond$.next(response.vBytesPerSecond);
         }
 
+        if (response.lastDifficultyAdjustment !== undefined) {
+          this.stateService.lastDifficultyAdjustment$.next(response.lastDifficultyAdjustment);
+        }
+
         if (response['git-commit']) {
           this.stateService.gitCommit$.next(response['git-commit']);
         }