Theme setting should be invisible from the general setting page

Author: thiennn

src/Modules/SimplCommerce.Module.Core/Data/CoreSeedData.cs

@@ -10,7 +10,7 @@ public static void SeedData(ModelBuilder builder)
         {
             builder.Entity<AppSetting>().HasData(
                 new AppSetting("Global.AssetVersion") { Module = "Core", IsVisibleInCommonSettingPage = true, Value = "1.0" },
-                new AppSetting("Theme") { Module = "Core", IsVisibleInCommonSettingPage = true, Value = "Generic" }
+                new AppSetting("Theme") { Module = "Core", IsVisibleInCommonSettingPage = false, Value = "Generic" }
             );
 
             builder.Entity<EntityType>().HasData(

src/SimplCommerce.WebHost/Migrations/20180603060406_SimplCommerce_1_0_0_RC.Designer.cs

@@ -1967,7 +1967,7 @@ protected override void Up(MigrationBuilder migrationBuilder)
                     { "SmtpUsername", false, "EmailSenderSmpt", "" },
                     { "SmtpPort", false, "EmailSenderSmpt", "587" },
                     { "SmtpServer", false, "EmailSenderSmpt", "smtp.gmail.com" },
-                    { "Theme", true, "Core", "Generic" },
+                    { "Theme", false, "Core", "Generic" },
                     { "Global.AssetVersion", true, "Core", "1.0" },
                     { "GoogleAppKey", false, "Contact", "" },
                     { "Catalog.IsProductPriceIncludeTax", true, "Catalog", "true" },

src/SimplCommerce.WebHost/Migrations/20180603060406_SimplCommerce_1_0_0_RC.cs

@@ -720,7 +720,7 @@ protected override void BuildModel(ModelBuilder modelBuilder)
                         new { Id = "Catalog.IsProductPriceIncludeTax", IsVisibleInCommonSettingPage = true, Module = "Catalog", Value = "true" },
                         new { Id = "GoogleAppKey", IsVisibleInCommonSettingPage = false, Module = "Contact", Value = "" },
                         new { Id = "Global.AssetVersion", IsVisibleInCommonSettingPage = true, Module = "Core", Value = "1.0" },
-                        new { Id = "Theme", IsVisibleInCommonSettingPage = true, Module = "Core", Value = "Generic" },
+                        new { Id = "Theme", IsVisibleInCommonSettingPage = false, Module = "Core", Value = "Generic" },
                         new { Id = "SmtpServer", IsVisibleInCommonSettingPage = false, Module = "EmailSenderSmpt", Value = "smtp.gmail.com" },
                         new { Id = "SmtpPort", IsVisibleInCommonSettingPage = false, Module = "EmailSenderSmpt", Value = "587" },
                         new { Id = "SmtpUsername", IsVisibleInCommonSettingPage = false, Module = "EmailSenderSmpt", Value = "" },