Fix platform detection after Node.js 21 (microsoft#200935)

Node.js 21 added `navigator.userAgent`, which breaks the previous detection.

Author: kkocdko

src/vs/base/common/platform.ts

@@ -75,31 +75,8 @@ interface INavigator {
 }
 declare const navigator: INavigator;
 
-// Web environment
-if (typeof navigator === 'object' && !isElectronRenderer) {
-	_userAgent = navigator.userAgent;
-	_isWindows = _userAgent.indexOf('Windows') >= 0;
-	_isMacintosh = _userAgent.indexOf('Macintosh') >= 0;
-	_isIOS = (_userAgent.indexOf('Macintosh') >= 0 || _userAgent.indexOf('iPad') >= 0 || _userAgent.indexOf('iPhone') >= 0) && !!navigator.maxTouchPoints && navigator.maxTouchPoints > 0;
-	_isLinux = _userAgent.indexOf('Linux') >= 0;
-	_isMobile = _userAgent?.indexOf('Mobi') >= 0;
-	_isWeb = true;
-
-	const configuredLocale = nls.getConfiguredDefaultLocale(
-		// This call _must_ be done in the file that calls `nls.getConfiguredDefaultLocale`
-		// to ensure that the NLS AMD Loader plugin has been loaded and configured.
-		// This is because the loader plugin decides what the default locale is based on
-		// how it's able to resolve the strings.
-		nls.localize({ key: 'ensureLoaderPluginIsLoaded', comment: ['{Locked}'] }, '_')
-	);
-
-	_locale = configuredLocale || LANGUAGE_DEFAULT;
-	_language = _locale;
-	_platformLocale = navigator.language;
-}
-
 // Native environment
-else if (typeof nodeProcess === 'object') {
+if (typeof nodeProcess === 'object') {
 	_isWindows = (nodeProcess.platform === 'win32');
 	_isMacintosh = (nodeProcess.platform === 'darwin');
 	_isLinux = (nodeProcess.platform === 'linux');
@@ -124,6 +101,29 @@ else if (typeof nodeProcess === 'object') {
 	_isNative = true;
 }
 
+// Web environment
+else if (typeof navigator === 'object' && !isElectronRenderer) {
+	_userAgent = navigator.userAgent;
+	_isWindows = _userAgent.indexOf('Windows') >= 0;
+	_isMacintosh = _userAgent.indexOf('Macintosh') >= 0;
+	_isIOS = (_userAgent.indexOf('Macintosh') >= 0 || _userAgent.indexOf('iPad') >= 0 || _userAgent.indexOf('iPhone') >= 0) && !!navigator.maxTouchPoints && navigator.maxTouchPoints > 0;
+	_isLinux = _userAgent.indexOf('Linux') >= 0;
+	_isMobile = _userAgent?.indexOf('Mobi') >= 0;
+	_isWeb = true;
+
+	const configuredLocale = nls.getConfiguredDefaultLocale(
+		// This call _must_ be done in the file that calls `nls.getConfiguredDefaultLocale`
+		// to ensure that the NLS AMD Loader plugin has been loaded and configured.
+		// This is because the loader plugin decides what the default locale is based on
+		// how it's able to resolve the strings.
+		nls.localize({ key: 'ensureLoaderPluginIsLoaded', comment: ['{Locked}'] }, '_')
+	);
+
+	_locale = configuredLocale || LANGUAGE_DEFAULT;
+	_language = _locale;
+	_platformLocale = navigator.language;
+}
+
 // Unknown environment
 else {
 	console.error('Unable to resolve platform.');