Don't try to refocus on an app of the same client. (#3714)

Fixes #3309

Note that this bug only occurs with apps that can have multiple windows
running under the same process (example: gnome-terminal, pluma)

src/miral/basic_window_manager.cpp

@@ -288,9 +288,6 @@ void miral::BasicWindowManager::refocus(
     if (hint && select_active_window(hint))
         return;
 
-    if (can_activate_window_for_session_in_workspace(application, workspaces_containing_window))
-        return;
-
     // Try to activate to recently active window of any application in a shared workspace
     {
         miral::Window new_focus;
@@ -2993,4 +2990,4 @@ void miral::BasicWindowManager::move_cursor_to(mir::geometry::PointF point)
             sink->handle_input(std::move(event));
         });
     });
-}
+}