quick_action_bar: Add menu entry to view REPL sessions (#14984)

This PR adds a new menu entry in the REPL item in the quick action bar
to open up the REPL sessions view:

<img width="232" alt="Screenshot 2024-07-22 at 4 54 36 PM"
src="https://github.com/user-attachments/assets/acc60a25-7722-4331-9b80-fab9cca65842">

This makes this more discoverable than having to know that the command
exists.

Release Notes:

- N/A