This adds a list of open workspaces to the project group dropdown menu,
to make sure it's possible to understand what workspaces are open, might
be running language servers, etc. It also allows you to close a specific
workspace.

Single folder project:
<img width="229" height="170" alt="Screenshot 2026-04-17 at 4 13 39 PM"
src="https://github.com/user-attachments/assets/86fca86a-73f1-4295-97b0-e97951102139"
/>

Multi folder project:
<img width="381" height="193" alt="Screenshot 2026-04-17 at 2 26 14 PM"
src="https://github.com/user-attachments/assets/b3c0c299-adf9-45d1-a314-feee8a993ea8"
/>

Release Notes:


- N/A