feat: add panel support for BrowserWindow (#34388)

* feat: add NSPanel support for BrowserWindow

* change header guard to satisfy linter

* change panel wording in browser-window

* Revert "change panel wording in browser-window"

This reverts commit 6f3f80f94a7040e1d612a2a65952753bbafd437d.

* change wording in browser-window

* Update shell/browser/ui/cocoa/electron_native_widget_mac.mm

Co-authored-by: Cheng Zhao <github@zcbenz.com>

* Update shell/browser/ui/cocoa/electron_native_widget_mac.h

Co-authored-by: Cheng Zhao <github@zcbenz.com>

* Changed ScopedDisableResize class to allow for nesting

Co-authored-by: andreiisaila <andreiisaila@microsoft.com>
Co-authored-by: Cheng Zhao <github@zcbenz.com>

shell/browser/ui/cocoa/electron_ns_panel.mm

@@ -0,0 +1,39 @@
+// Copyright (c) 2022 Microsoft, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "shell/browser/ui/cocoa/electron_ns_panel.h"
+
+@implementation ElectronNSPanel
+
+@synthesize originalStyleMask;
+
+- (id)initWithShell:(electron::NativeWindowMac*)shell
+          styleMask:(NSUInteger)styleMask {
+  if (self = [super initWithShell:shell styleMask:styleMask]) {
+    originalStyleMask = styleMask;
+  }
+  return self;
+}
+
+@dynamic styleMask;
+// The Nonactivating mask is reserverd for NSPanel,
+// but we can use this workaround to add it at runtime
+- (NSWindowStyleMask)styleMask {
+  return originalStyleMask | NSWindowStyleMaskNonactivatingPanel;
+}
+
+- (void)setStyleMask:(NSWindowStyleMask)styleMask {
+  originalStyleMask = styleMask;
+  // Notify change of style mask.
+  [super setStyleMask:styleMask];
+}
+
+- (void)setCollectionBehavior:(NSWindowCollectionBehavior)collectionBehavior {
+  NSWindowCollectionBehavior panelBehavior =
+      (NSWindowCollectionBehaviorCanJoinAllSpaces |
+       NSWindowCollectionBehaviorFullScreenAuxiliary);
+  [super setCollectionBehavior:collectionBehavior | panelBehavior];
+}
+
+@end