Issue #2871079 by mostafadev, RajabNatshah: [Vartheme Admin] Optimization round no. 2 for varbase admin theme

Issue #2875297: Updated [ Feature: Content Editing - Rich Text Editor - Input formats ] automated functional test

Issue #2874207: Added the [CKEditor - BiDi (Text Direction)] library to to varbase code because it^s not listed in the Drupal.org Library Packaging Whitelist, we will move the command to get the library in the drupal-org.make file, until it been added to the Packaging Whitelist https://www.drupal.org/node/2874359

Issue #2872284: Added an Updated function to nable Admin Toolbar Extra Tools module in the next update.

Issue #2872284: Added the varbase x-small emblem white logo to the admin toolbar with the varbase/toolbar.icon library

Issue #2870172: [8.4.x] Added [ Feature: Navigational Features - Other menus - Standard menus ] for Automated Functional Testing.

Issue #2871377: [8.4.x] Updated [Entity Browser] module from 8.1.0-rc2 to 8.1.0 , and Updated the patch for entity browser 8.x-1.0

Issue #2870985: [8.4.x] Removed 2868095-2.patch for the [bootstrap layouts] module: as the patch were committed

Issue #2870172: [8.4.x] Added [ Feature: File & Media Management - Assets Management - Image media and their usage list page for site admins ] for Automated Functional Testing.

Issue #2870172: [8.4.x] Added [ Feature: File & Media Management - Assets Management - Ability to embed existing media image library in the rich text editor ] for Automated Functional Testing

Issue #2870172: [8.4.x] : Updated Behat Step definitions for [Editor Media Browser] and to click, or double click on an image with the provided title/alt text.