[ADF-5406] SCSS and HTML template path fixes (#7063)

* remove useless mixin

* fix scss paths

* style fixes

* fix styles

* style fixes

* style fixes

* style fixes

* style fixes

* insights fixes

* css and template path fixes

* bug fixes

lib/core/layout/components/layout-container/layout-container.component.scss

@@ -1,5 +1,3 @@
-@import '~@angular/material/theming';
-
 @mixin adf-layout-container-theme($theme) {
     $background: map-get($theme, background);
     $foreground: map-get($theme, foreground);

lib/core/layout/components/layout-container/layout-container.component.ts

@@ -23,7 +23,6 @@ import { Direction } from '@angular/cdk/bidi';
 @Component({
     selector: 'adf-layout-container',
     templateUrl: './layout-container.component.html',
-    styleUrls: ['./layout-container.component.scss'],
     encapsulation: ViewEncapsulation.None,
     animations: [sidenavAnimation, contentAnimation]
 })