docs(docs): add pj-palette and Ghostty grouping documentation

docs/terminal/ghostty.mdx

@@ -61,6 +61,7 @@ Closing a window only detaches its session; the shells keep running in the tmux
 | Key | Sends | tmux action |
 | --- | --- | --- |
 | `ctrl+shift+t` | `prefix c` | New window (tab) in pane cwd |
+| `ctrl+shift+space` | `prefix t` | Project Tasks palette (pj: install, dev, sync, make, every project task) |
 | `ctrl+shift+w` | `prefix k` | Kill window (close tab) |
 | `ctrl+shift+r` | `prefix r` | Rename window |
 | `ctrl+tab` / `ctrl+page_down` / `ctrl+shift+right` / `ctrl+shift+k` | `prefix n` | Next window |