Use ESC to cancel dragging in Zed (#30318)

Closes https://github.com/zed-industries/zed/issues/11887

ESC is always captured in terminal due to 


https://github.com/zed-industries/zed/blob/980bfae331dd5078bbba9fe0f3993d9ad5ca6e29/crates/terminal/src/terminal.rs#L1339-L1353

so this part is not fixed.

Otherwise, all other drags are cancelled when ESC is pressed:


https://github.com/user-attachments/assets/6e70a1e5-c244-420b-9dec-ae2ac2997a59


Release Notes:

- Allowed to use ESC to cancel dragging in Zed

crates/collab_ui/src/collab_panel.rs

@@ -1463,7 +1463,9 @@ impl CollabPanel {
     }
 
     fn cancel(&mut self, _: &Cancel, window: &mut Window, cx: &mut Context<Self>) {
-        if self.take_editing_state(window, cx) {
+        if cx.stop_active_drag(window) {
+            return;
+        } else if self.take_editing_state(window, cx) {
             window.focus(&self.filter_editor.focus_handle(cx));
         } else if !self.reset_filter_editor_text(window, cx) {
             self.focus_handle.focus(window);