Allow to reuse windows in open remote projects dialogue (#32138)

Closes https://github.com/zed-industries/zed/issues/26276

Same as other "open window" actions like "open recent", add a
`"create_new_window": false` (default `false`) argument into the
`projects::OpenRemote` action.

Make all menus to use this default; allow users to change this in the
keybindings.
Same as with other actions, `cmd`/`ctrl` inverts the parameter value.

<img width="554" alt="default"
src="https://github.com/user-attachments/assets/156d50f0-6511-47b3-b650-7a5133ae9541"
/>

<img width="552" alt="override"
src="https://github.com/user-attachments/assets/cf7d963b-86a3-4925-afec-fdb5414418e1"
/>

Release Notes:

- Allowed to reuse windows in open remote projects dialogue

crates/recent_projects/src/recent_projects.rs

@@ -50,6 +50,7 @@ pub fn init(cx: &mut App) {
     });
     cx.on_action(|open_remote: &OpenRemote, cx| {
         let from_existing_connection = open_remote.from_existing_connection;
+        let create_new_window = open_remote.create_new_window;
         with_active_or_new_workspace(cx, move |workspace, window, cx| {
             if from_existing_connection {
                 cx.propagate();
@@ -58,7 +59,7 @@ pub fn init(cx: &mut App) {
             let handle = cx.entity().downgrade();
             let fs = workspace.project().read(cx).fs().clone();
             workspace.toggle_modal(window, cx, |window, cx| {
-                RemoteServerProjects::new(fs, window, cx, handle)
+                RemoteServerProjects::new(create_new_window, fs, window, handle, cx)
             })
         });
     });
@@ -480,6 +481,7 @@ impl PickerDelegate for RecentProjectsDelegate {
                         .key_binding(KeyBinding::for_action(
                             &OpenRemote {
                                 from_existing_connection: false,
+                                create_new_window: false,
                             },
                             window,
                             cx,
@@ -488,6 +490,7 @@ impl PickerDelegate for RecentProjectsDelegate {
                             window.dispatch_action(
                                 OpenRemote {
                                     from_existing_connection: false,
+                                    create_new_window: false,
                                 }
                                 .boxed_clone(),
                                 cx,