windows: Ignore WM_SIZE event when minimizing window (#21533)

feeiyu created 

Closes #21364

Release Notes:

- Fixed minimize window and then reopen cause the layout changed


![layout1204](https://github.com/user-attachments/assets/e823da90-0cc6-4fc9-8b8e-82680357c6fe)

Change summary

crates/gpui/src/platform/windows/events.rs | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)

Detailed changes

crates/gpui/src/platform/windows/events.rs 🔗 

@@ -33,7 +33,7 @@ pub(crate) fn handle_msg(
         WM_ACTIVATE => handle_activate_msg(handle, wparam, state_ptr),
         WM_CREATE => handle_create_msg(handle, state_ptr),
         WM_MOVE => handle_move_msg(handle, lparam, state_ptr),
-        WM_SIZE => handle_size_msg(lparam, state_ptr),
+        WM_SIZE => handle_size_msg(wparam, lparam, state_ptr),
         WM_ENTERSIZEMOVE | WM_ENTERMENULOOP => handle_size_move_loop(handle),
         WM_EXITSIZEMOVE | WM_EXITMENULOOP => handle_size_move_loop_exit(handle),
         WM_TIMER => handle_timer_msg(handle, wparam, state_ptr),
@@ -136,7 +136,15 @@ fn handle_move_msg(
     Some(0)
 }
 
-fn handle_size_msg(lparam: LPARAM, state_ptr: Rc<WindowsWindowStatePtr>) -> Option<isize> {
+fn handle_size_msg(
+    wparam: WPARAM,
+    lparam: LPARAM,
+    state_ptr: Rc<WindowsWindowStatePtr>,
+) -> Option<isize> {
+    if wparam.0 == SIZE_MINIMIZED as usize {
+        return Some(0);
+    }
+
     let width = lparam.loword().max(1) as i32;
     let height = lparam.hiword().max(1) as i32;
     let mut lock = state_ptr.state.borrow_mut();