[ADF-4323] Add style fixes from ACA (#4546)

* [ADF-4323] add style fix for adf-search-sorting-picker

- moved from ACA

* [ADF-4323] use Flex Layout's media query mixin

* [ADF-4323] add style fix for adf-pagination

- moved from ACA

* [ADF-4323] add style fix for adf-version-manager

- which fixed issue [ACA-1750]

* [ADF-4323] remove not used property

* [ADF-4323] remove extra bottom-border

* [ADF-4323] upload-drag-area refactor to scss

* [ADF-4323] add style fix for adf file upload

- from ACA

* [ADF-4323] add style fix for adf-info-drawer

- from ACA

* [ADF-4323] add style fix for adf-toolbar

- from ACA

* [ADF-4323] add style fix for adf-sidenav-layout

- from ACA

* [ADF-4323] add style fix for adf-search-filter

- from ACA

* [ADF-4323] add style fix for adf-upload-drag-area

- from ACA

* [ADF-4323] add style fix for adf-info-drawer

- from ACA

* [ADF-4323] move style fix for adf-manage-versions from demo-shell

* [ADF-4323] use Flex Layout's media query mixin

* [ADF-4323] small fix to remove scrolling

* [ADF-4323] add adf-sidenav-layout host element class

* [ADF-4323] change 'inline' class name to 'adf-toolbar--inline'

- css lint was failing because of old naming

* [ADF-4323] set pagination empty state styling

* [ADF-4323] set pagination border to none

lib/content-services/upload/components/file-uploading-dialog.component.scss

@@ -1,4 +1,3 @@
-
 @mixin adf-upload-dialog-theme($theme) {
     $foreground: map-get($theme, foreground);
     $background: map-get($theme, background);
@@ -10,6 +9,7 @@
         bottom: 20px;
         width: 40%;
         box-shadow: 1px 5px 15px #888888;
+        z-index: 999;
 
         &--padding {
             padding: 1em;