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/clients/client-stepper/client-preview-step/client-preview-step.component.html

@@ -219,7 +219,7 @@
   <button mat-raised-button [routerLink]="['../']">
     {{"labels.buttons.Cancel" | translate}}
   </button>
-  <button mat-raised-button color="primary" (click)="submit.emit()">
+  <button mat-raised-button color="primary" (click)="submitEvent.emit()">
     {{"labels.buttons.Submit" | translate}}
   </button>
 </div>