chore(*): fix the resize observer import

Author: DiyanDimitrov

projects/igniteui-angular/src/lib/tabs/tabs/tab-header.component.ts

@@ -3,7 +3,7 @@ import { IgxTabItemDirective } from '../tab-item.directive';
 import { IgxTabHeaderDirective } from '../tab-header.directive';
 import { IgxTabHeaderBase } from '../tabs.base';
 import { IgxTabsComponent } from './tabs.component';
-import {ResizeObserver} from '@juggle/resize-observer';
+import { ResizeObserver } from '@juggle/resize-observer';
 import { PlatformUtil } from '../../core/utils';
 
 @Component({

projects/igniteui-angular/src/lib/tabs/tabs/tabs.component.ts

@@ -3,7 +3,7 @@ import { AfterViewInit, Component, ElementRef, HostBinding, Input, NgZone, OnDes
 import { mkenum } from '../../core/utils';
 import { IgxTabsBase } from '../tabs.base';
 import { IgxTabsDirective } from '../tabs.directive';
-import ResizeObserver from 'resize-observer-polyfill';
+import { ResizeObserver } from '@juggle/resize-observer';
 
 export const IgxTabsAlignment = mkenum({
     start: 'start',