Allow clicking on worktrees to share, unshare, join, and leave

Co-Authored-By: Nathan Sobo <nathan@zed.dev>

zed/src/editor.rs

@@ -2320,6 +2320,7 @@ impl Editor {
             buffer::Event::Saved => cx.emit(Event::Saved),
             buffer::Event::FileHandleChanged => cx.emit(Event::FileHandleChanged),
             buffer::Event::Reloaded => cx.emit(Event::FileHandleChanged),
+            buffer::Event::Closed => cx.emit(Event::Closed),
             buffer::Event::Reparsed => {}
         }
     }
@@ -2449,6 +2450,7 @@ pub enum Event {
     Dirtied,
     Saved,
     FileHandleChanged,
+    Closed,
 }
 
 impl Entity for Editor {
@@ -2556,6 +2558,10 @@ impl workspace::ItemView for Editor {
         matches!(event, Event::Activate)
     }
 
+    fn should_close_item_on_event(event: &Self::Event) -> bool {
+        matches!(event, Event::Closed)
+    }
+
     fn should_update_tab_on_event(event: &Self::Event) -> bool {
         matches!(
             event,