fix lint issues

npm/ng-packs/packages/core/src/lib/tests/capsLock.directive.spec.ts

@@ -11,7 +11,7 @@ import { By } from '@angular/platform-browser';
   imports:[TrackCapsLockDirective]
 })
 class TestComponent {
-  capsLock:boolean = false
+  capsLock = false
 }
 
 describe('TrackCapsLockDirective',()=>{

npm/ng-packs/packages/core/src/lib/tests/show-password-directive.spec.ts

@@ -13,7 +13,7 @@ import { By } from '@angular/platform-browser';
   imports:[ShowPasswordDirective]
 })
 class TestComponent {
-  showPassword:boolean = false
+  showPassword = false
 }
 
 describe('ShowPasswordDirective',()=>{
@@ -46,7 +46,7 @@ describe('ShowPasswordDirective',()=>{
     });
 
     it('should have three input has ShowPasswordDirective elements', () => {
-      let input = des[2].nativeElement
+      const input = des[2].nativeElement
       expect(input.type).toBe('password')
       fixture.componentInstance.showPassword = true
       fixture.detectChanges()