Fix issue with CoreWebView2Environment initialization

Author: hbl917070

Tiefsee/WebWindow.cs

@@ -292,7 +292,7 @@ public class AppInfo {
     /// 取得 CoreWebView2Environment
     /// </summary>
     public static async Task<CoreWebView2Environment> GetCoreWebView2Environment() {
-        if (_webView2Environment != null) {
+        if (_webView2Environment == null) {
             // --disable-web-security  允許跨域請求
             // --disable-features=msWebOOUI,msPdfOOUI  禁止迷你選單
             // --user-agent  覆寫userAgent