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/balance-sheet/balance-sheet-datasource.ts

@@ -5,19 +5,27 @@ import { MatSort, Sort } from '@angular/material/sort';
 import { merge, Observable, of as observableOf } from 'rxjs';
 import { map } from 'rxjs/operators';
 
+import { BalanceSheetItem } from './balance-sheet-item';
+
 /** Simple sort comparator for example ID/Name columns (for client-side sorting). */
 function compare(a: string | number, b: string | number, isAsc: boolean) {
   return (a < b ? -1 : 1) * (isAsc ? 1 : -1);
 }
-export class BalanceSheetDataSource extends DataSource<any> {
-  constructor(public data: any[], private paginator?: MatPaginator, private sort?: MatSort) {
+export class BalanceSheetDataSource extends DataSource<BalanceSheetItem> {
+  constructor(
+    public data: BalanceSheetItem[],
+    private paginator?: MatPaginator,
+    private sort?: MatSort,
+  ) {
     super();
   }
 
-  connect(): Observable<any[]> {
-    const dataMutations: (Observable<any[]> | EventEmitter<PageEvent> | EventEmitter<Sort>)[] = [
-      observableOf(this.data),
-    ];
+  connect(): Observable<BalanceSheetItem[]> {
+    const dataMutations: (
+      | Observable<BalanceSheetItem[]>
+      | EventEmitter<PageEvent>
+      | EventEmitter<Sort>
+    )[] = [observableOf(this.data)];
     if (this.paginator) dataMutations.push((this.paginator as MatPaginator).page);
     if (this.sort) dataMutations.push((this.sort as MatSort).sortChange);
 
@@ -31,13 +39,13 @@ export class BalanceSheetDataSource extends DataSource<any> {
 
   disconnect() {}
 
-  private getPagedData(data: any[]) {
+  private getPagedData(data: BalanceSheetItem[]) {
     if (this.paginator === undefined) return data;
     const startIndex = this.paginator.pageIndex * this.paginator.pageSize;
     return data.splice(startIndex, this.paginator.pageSize);
   }
 
-  private getSortedData(data: any[]) {
+  private getSortedData(data: BalanceSheetItem[]) {
     if (this.sort === undefined) return data;
     if (!this.sort.active || this.sort.direction === '') {
       return data;
@@ -48,9 +56,8 @@ export class BalanceSheetDataSource extends DataSource<any> {
       const isAsc = sort.direction === 'asc';
       switch (sort.active) {
         case 'name':
+          if (a.name === undefined || b.name === undefined) return 0;
           return compare(a.name, b.name, isAsc);
-        case 'id':
-          return compare(+a.id, +b.id, isAsc);
         default:
           return 0;
       }