Removed the use of any and enabled the rule in eslint.

Now according to me the conversion is final.
Testing is required.

overlord/src/app/receipt/receipt-dialog.component.ts

@@ -6,7 +6,9 @@ import { Observable, of as observableOf } from 'rxjs';
 import { debounceTime, distinctUntilChanged, map, startWith, switchMap } from 'rxjs/operators';
 
 import { Account } from '../core/account';
+import { AccountBalance } from '../core/account-balance';
 import { AccountService } from '../core/account.service';
+import { Journal } from '../core/journal';
 import { MathService } from '../shared/math.service';
 
 @Component({
@@ -18,11 +20,11 @@ export class ReceiptDialogComponent implements OnInit {
   accounts: Observable<Account[]>;
   form: FormGroup;
   account: Account = new Account();
-  accBal: any;
+  accBal: AccountBalance | null = null;
 
   constructor(
     public dialogRef: MatDialogRef<ReceiptDialogComponent>,
-    @Inject(MAT_DIALOG_DATA) public data: any,
+    @Inject(MAT_DIALOG_DATA) public data: { journal: Journal; date: string },
     private fb: FormBuilder,
     private math: MathService,
     private accountSer: AccountService,