Add block viz filter UI

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

@@ -21,7 +21,6 @@ export class MempoolBlockComponent implements OnInit, OnDestroy {
   mempoolBlockTransactions$: Observable<TransactionStripped[]>;
   ordinal$: BehaviorSubject<string> = new BehaviorSubject('');
   previewTx: TransactionStripped | void;
-  filterFlags: bigint | null = 0n;
   webGlEnabled: boolean;
 
   constructor(
@@ -35,7 +34,6 @@ export class MempoolBlockComponent implements OnInit, OnDestroy {
   }
 
   ngOnInit(): void {
-    window['setFlags'] = this.setFilterFlags.bind(this);
     this.websocketService.want(['blocks', 'mempool-blocks']);
 
     this.mempoolBlock$ = this.route.paramMap
@@ -92,11 +90,6 @@ export class MempoolBlockComponent implements OnInit, OnDestroy {
   setTxPreview(event: TransactionStripped | void): void {
     this.previewTx = event;
   }
-
-  setFilterFlags(flags: bigint | null) {
-    this.filterFlags = flags;
-    this.cd.markForCheck();
-  }
 }
 
 function detectWebGL() {