Merge pull request #5996 from tangge233/fix/ValidServerCheck

chore: 防止小白无脑复制上面的 LittleSkin 地址到自动进入服务器

Plain Craft Launcher 2/Pages/PageVersion/PageVersionSetup.xaml

@@ -176,6 +176,9 @@
                                         <System:String>"</System:String>
                                         <System:String>“</System:String>
                                         <System:String>”</System:String>
+                                        <System:String>/</System:String>
+                                        <System:String>http://</System:String>
+                                        <System:String>https://</System:String>
                                     </local:ValidateExcept.Excepts>
                                 </local:ValidateExcept>
                             </local:MyTextBox.ValidateRules>