build: Replace Codelyzer and TSLint with Angular ESLint

Migrate from the deprecated TSLint to Angluar ESLint. Also fix current
linting issues in the code, in particular:

- Use strict equals operators (=== and !==)
- Remove empty lifecycle methods (mostly ngOnInit)
- Output bindings including aliases should not be named as standard dom
  events (submit)
- Async pipe results should not be negated

src/app/accounting/revert-transaction/revert-transaction.component.ts

@@ -1,5 +1,5 @@
 /** Angular Imports */
-import { Component, OnInit, Inject } from '@angular/core';
+import { Component, Inject } from '@angular/core';
 import { MatDialogRef, MAT_DIALOG_DATA } from '@angular/material/dialog';
 import { UntypedFormControl } from '@angular/forms';
 
@@ -11,7 +11,7 @@ import { UntypedFormControl } from '@angular/forms';
   templateUrl: './revert-transaction.component.html',
   styleUrls: ['./revert-transaction.component.scss']
 })
-export class RevertTransactionComponent implements OnInit {
+export class RevertTransactionComponent {
 
   /** Comments input form control. */
   comments = new UntypedFormControl('');
@@ -23,7 +23,4 @@ export class RevertTransactionComponent implements OnInit {
   constructor(public dialogRef: MatDialogRef<RevertTransactionComponent>,
               @Inject(MAT_DIALOG_DATA) public data: any) { }
 
-  ngOnInit() {
-  }
-
 }