app/internal/wm: rename confusing app/internal/window

Package wm (for "window manager") is a better fit for the package, and
distinguishes it from the low-level package windows for the Windows API.

Signed-off-by: Elias Naur <mail@eliasnaur.com>

app/internal/wm/os_darwin.m

@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: Unlicense OR MIT
+
+@import Dispatch;
+@import Foundation;
+
+#include "_cgo_export.h"
+
+void gio_wakeupMainThread(void) {
+	dispatch_async(dispatch_get_main_queue(), ^{
+		gio_dispatchMainFuncs();
+	});
+}
+
+NSUInteger gio_nsstringLength(CFTypeRef cstr) {
+	NSString *str = (__bridge NSString *)cstr;
+	return [str length];
+}
+
+void gio_nsstringGetCharacters(CFTypeRef cstr, unichar *chars, NSUInteger loc, NSUInteger length) {
+	NSString *str = (__bridge NSString *)cstr;
+	[str getCharacters:chars range:NSMakeRange(loc, length)];
+}