Synchronize open Essentials and pinned tabs across windows

[AhmedSahbaoui69]

Objective:

Ensure that Essential tabs are synchronized across multiple browser windows, with the restriction that an Essential tab is never open in more than one window simultaneously.

Behavior on Click:

1. Essential tab is not loaded in any window:

   • Clicking the tab opens it in the current window.

2. Essential tab is already open in another window:

   • Clicking the tab in a different window will:

     1. Switch to the existing tab in the current window.
     2. Unload/close the tab from the previous window.

Benefits:

• Prevents duplicate tabs and improves memory usage.
• Provides seamless tab switching between windows.