Replace PPFT/urlPost HTML scraping with OAuth 2.0 device code flow for 2FA support

- Add Microsoft.RequestDeviceCode() and Microsoft.PollDeviceCodeToken() methods
- Remove XboxLive.PreAuth() and XboxLive.UserLogin() (HTML scraping)
- Remove PreAuthResponse struct, PPFT/urlPost regex patterns
- Update XblAuthenticate to always use "d=" prefix for OAuth tokens
- Update MicrosoftMCCLogin to use device code flow
- Skip password prompting for Microsoft device code method
- Add translation strings for device code prompts
- Update config comments and documentation

Co-authored-by: milutinke <441903+milutinke@users.noreply.github.com>
Agent-Logs-Url: https://github.com/MCCTeam/Minecraft-Console-Client/sessions/e13b31f3-8d76-4240-bb69-a519a145fc6a

MinecraftClient/Resources/ConfigComments/ConfigComments.Designer.cs

@@ -1922,7 +1922,7 @@ namespace MinecraftClient {
         }
         
         /// <summary>
-        ///   Looks up a localized string similar to Microsoft Account sign-in method: &quot;mcc&quot; OR &quot;browser&quot;. If the login always fails, please try to use the &quot;browser&quot; once..
+        ///   Looks up a localized string similar to Microsoft Account sign-in method: &quot;mcc&quot; (device code, supports 2FA) OR &quot;browser&quot; (manual browser login)..
         /// </summary>
         internal static string Main_General_method {
             get {

MinecraftClient/Resources/ConfigComments/ConfigComments.resx

@@ -724,7 +724,7 @@ Usage examples: "/tell &lt;mybot&gt; connect Server1", "/connect Server2"</value
     <value>The address of the game server, "Host" can be filled in with domain name or IP address. (The "Port" field can be deleted, it will be resolved automatically)</value>
   </data>
   <data name="Main.General.method" xml:space="preserve">
-    <value>Microsoft Account sign-in method: "mcc" OR "browser". If the login always fails, please try to use the "browser" once.</value>
+    <value>Microsoft Account sign-in method: "mcc" (device code, supports 2FA) OR "browser" (manual browser login).</value>
   </data>
   <data name="Main.General.server_info" xml:space="preserve">
     <value>Account type: "mojang" OR "microsoft" OR "yggdrasil". Also affects interactive login in console.</value>