Refactor/stackconfig (#581)

* refactor(stack-config): update  stack config

* feat:stack config

* feat:modify appsettings and unit test

* refactor:remove  useless code

* feat:refatcor MasaStackConfigUtils

* fix:code smell

* feat:add MASA_STACK

* feat:rename host to domain

* feat:host -> domain

* feat:GetMasaStack method public

---------

Co-authored-by: yanpengju <yanpengju@masastack.com>

Author: MayueCif

src/Contrib/StackSdks/Masa.Contrib.StackSdks.Config/MasaStackConfigExtensions.cs

@@ -5,7 +5,7 @@ namespace Masa.Contrib.StackSdks.Config;
 
 public static class MasaStackConfigExtensions
 {
-    internal static JsonArray GetMasaStack(this IMasaStackConfig masaStackConfig)
+    public static JsonArray GetMasaStack(this IMasaStackConfig masaStackConfig)
     {
         var value = masaStackConfig.GetValue(MasaStackConfigConstant.MASA_STACK);
         if (string.IsNullOrEmpty(value))