ui: 添加 NeoForge 手动安装 Tab

feat: NeoForge 自动安装 Stage 1
fix: StdVersion 可能错误地包含了 "neoforge-" 前缀
fix: 自动安装选择 NeoForge 时自动生成的核心名称存在重复字符串

Plain Craft Launcher 2/Pages/PageDownload/PageDownloadLeft.xaml.vb

@@ -10,7 +10,7 @@
     ''' <summary>
     ''' 勾选事件改变页面。
     ''' </summary>
-    Private Sub PageCheck(sender As MyListItem, e As RouteEventArgs) Handles ItemInstall.Check, ItemClient.Check, ItemOptiFine.Check, ItemForge.Check, ItemLiteLoader.Check, ItemMod.Check, ItemFabric.Check, ItemPack.Check
+    Private Sub PageCheck(sender As MyListItem, e As RouteEventArgs) Handles ItemInstall.Check, ItemClient.Check, ItemOptiFine.Check, ItemForge.Check, ItemNeoForge.Check, ItemLiteLoader.Check, ItemMod.Check, ItemFabric.Check, ItemPack.Check
         '尚未初始化控件属性时，sender.Tag 为 Nothing，会导致切换到页面 0
         '若使用 IsLoaded，则会导致模拟点击不被执行（模拟点击切换页面时，控件的 IsLoaded 为 False）
         If sender.Tag IsNot Nothing Then PageChange(Val(sender.Tag))
@@ -31,6 +31,9 @@
             Case FormMain.PageSubType.DownloadForge
                 If FrmDownloadForge Is Nothing Then FrmDownloadForge = New PageDownloadForge
                 Return FrmDownloadForge
+            Case FormMain.PageSubType.DownloadNeoForge
+                If FrmDownloadNeoForge Is Nothing Then FrmDownloadNeoForge = New PageDownloadNeoForge
+                Return FrmDownloadNeoForge
             Case FormMain.PageSubType.DownloadLiteLoader
                 If FrmDownloadLiteLoader Is Nothing Then FrmDownloadLiteLoader = New PageDownloadLiteLoader
                 Return FrmDownloadLiteLoader
@@ -91,6 +94,7 @@
                 DlClientListLoader.Start(IsForceRestart:=True)
                 DlOptiFineListLoader.Start(IsForceRestart:=True)
                 DlForgeListLoader.Start(IsForceRestart:=True)
+                DlNeoForgeListLoader.Start(IsForceRestart:=True)
                 DlLiteLoaderListLoader.Start(IsForceRestart:=True)
                 DlFabricListLoader.Start(IsForceRestart:=True)
                 DlFabricApiLoader.Start(IsForceRestart:=True)
@@ -117,6 +121,9 @@
             Case FormMain.PageSubType.DownloadForge
                 DlForgeListLoader.Start(IsForceRestart:=True)
                 ItemForge.Checked = True
+            Case FormMain.PageSubType.DownloadNeoForge
+                DlNeoForgeListLoader.Start(IsForceRestart:=True)
+                ItemNeoForge.Checked = True
             Case FormMain.PageSubType.DownloadLiteLoader
                 DlLiteLoaderListLoader.Start(IsForceRestart:=True)
                 ItemLiteLoader.Checked = True
@@ -154,6 +161,7 @@
         ItemOptiFine.Visibility = Visibility.Visible
         ItemFabric.Visibility = Visibility.Visible
         ItemForge.Visibility = Visibility.Visible
+        ItemNeoForge.Visibility = Visibility.Visible
         ItemLiteLoader.Visibility = Visibility.Visible
         RunInThread(Sub()
                         Thread.Sleep(20)
@@ -172,6 +180,7 @@
         ItemOptiFine.Visibility = Visibility.Collapsed
         ItemFabric.Visibility = Visibility.Collapsed
         ItemForge.Visibility = Visibility.Collapsed
+        ItemNeoForge.Visibility = Visibility.Collapsed
         ItemLiteLoader.Visibility = Visibility.Collapsed
         RunInThread(Sub()
                         Thread.Sleep(20)