Add fee delta to acceleration data

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

@@ -816,6 +816,7 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
       this.tx.acceleration = cpfpInfo.acceleration;
       this.tx.acceleratedBy = cpfpInfo.acceleratedBy;
       this.tx.acceleratedAt = cpfpInfo.acceleratedAt;
+      this.tx.feeDelta = cpfpInfo.feeDelta;
       this.setIsAccelerated(firstCpfp);
     }
 

frontend/src/app/interfaces/electrs.interface.ts

@@ -22,6 +22,7 @@ export interface Transaction {
   acceleration?: boolean;
   acceleratedBy?: number[];
   acceleratedAt?: number;
+  feeDelta?: number;
   deleteAfter?: number;
   _unblinded?: any;
   _deduced?: boolean;

frontend/src/app/interfaces/node-api.interface.ts

@@ -31,6 +31,7 @@ export interface CpfpInfo {
   acceleration?: boolean;
   acceleratedBy?: number[];
   acceleratedAt?: number;
+  feeDelta?: number;
 }
 
 export interface RbfInfo {