Previously, within the recent projects modal, the ability to add a
project to the workspace, delete a project from the "this window" or
"recent projects" sections, and remove a project from the current window
were only possible to do with the mouse. This PR enables them with the
keyboard, through buttons/keybindings exposed in the modal's footer and
"actions" menu. Here's a quick video for reference:


https://github.com/user-attachments/assets/b8980ed8-ba32-4e20-93b4-c0a9ea311309

Release Notes:

- Improved keyboard navigation for the recent projects modal.