message: docs: remove explicit boolean type in examples as TS infers it automatically
  In the `packages/examples/common/ngif/module.ts` file, the field `show` is given an explicit
  boolean type. Since typescript infers boolean type, it is redundant and this commit removes it.
  PR Close
diff: @@ -22,7 +22,7 @@ import {Subject} from 'rxjs';
  `
  })
  export class NgIfSimple {
  - show: boolean = true;
  + show = true;
  }
  // #enddocregion
  @@ -38,7 +38,7 @@ export class NgIfSimple {
  `
  })
  export class NgIfElse {
  - show: boolean = true;
  + show = true;
  }
  // #enddocregion
  @@ -58,7 +58,7 @@ export class NgIfElse {
  })
  export class NgIfThenElse implements OnInit {
  thenBlock: TemplateRef<any>|null = null;
  - show: boolean = true;
  + show = true;
  @ViewChild('primaryBlock', {static: true}) primaryBlock: TemplateRef<any>|null = null;
  @ViewChild('secondaryBlock', {static: true}) secondaryBlock: TemplateRef<any>|null = null;
  