pane: Improve close active item to better handle pinned tabs (#23488)

Closes #22247

- [x] Do not close pinned tab on keyboard shortcuts like `ctrl+w` or
`alt+f4`
- [x] Close pinned tab on context menu action, menu bar action, or vim
bang
- [x] While closing pinned tab via shortcut (where it won't close),
instead activate any other non-pinned tab in same pane
- [x] Else, if any other pane contains non-pinned tab, activate that
- [x] Tests

Co-authored-by: uncenter <47499684+uncenter@users.noreply.github.com>

Release Notes:

- Pinned tab now stay open when using close shortcuts, auto focuses to
any other non-pinned tab instead.

crates/terminal_view/src/terminal_view.rs

@@ -257,7 +257,13 @@ impl TerminalView {
                         .action("Inline Assist", Box::new(InlineAssist::default()))
                 })
                 .separator()
-                .action("Close", Box::new(CloseActiveItem { save_intent: None }))
+                .action(
+                    "Close",
+                    Box::new(CloseActiveItem {
+                        save_intent: None,
+                        close_pinned: true,
+                    }),
+                )
         });
 
         window.focus(&context_menu.focus_handle(cx));