[ADF-4865] Upload Dialog - row actions not accessible by keyboard alone (#5051)

* access upload dialog information by keyboard

* upload files actions keyboard accessibility

* aria labels translation keys

* refractor styling

* toggle action icons

* update docs

* e2e

* e2e update action reference

docs/content-services/directives/toggle-icon.directive.md

@@ -0,0 +1,34 @@
+---
+Title: Toggle Icon directive
+Added: v2.0.0
+Status: Active
+Last reviewed: 2019-04-09
+---
+
+# [Toggle Icon directive](../../../lib/content-services/upload/directives/toggle-icon.directive.ts 'Defined in toggle-icon.directive.ts')
+
+Toggle icon on mouse or keyboard event for a selectable element.
+
+## Example Usage
+
+```html
+<button mat-icon-button adf-toggle-icon #toggle="toggleIcon">
+    <mat-icon *ngIf="!toggle.isToggled">
+        check_circle
+    </mat-icon>
+
+    <mat-icon *ngIf="toggle.isToggled">
+        remove_circle
+    </mat-icon>
+    <button></button>
+</button>
+```
+
+## Class members
+
+### Properties
+
+| Name      | Type      | Default value | Description                                     |
+| --------- | --------- | ------------- | ----------------------------------------------- |
+| isToggled | `boolean` | false         | Is element active by mouseenter or focus event? |
+| isFocused | `boolean` | false         | Is element focused by keyboard navigation?      |