Replace IHostingEnvironment with IWebHostEnvironment (dotnet/aspnetcore#7725)

Commit migrated from dotnet/aspnetcore@4e44025a52

src/content/Angular-CSharp/Startup.cs

@@ -7,6 +7,7 @@ using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.SpaServices.AngularCli;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
 
 namespace Company.WebApplication1
 {
@@ -33,7 +34,7 @@ namespace Company.WebApplication1
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
-        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
             if (env.IsDevelopment())
             {

src/content/React-CSharp/Startup.cs

@@ -7,6 +7,7 @@ using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.SpaServices.ReactDevelopmentServer;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
 
 namespace Company.WebApplication1
 {
@@ -33,7 +34,7 @@ namespace Company.WebApplication1
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
-        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
             if (env.IsDevelopment())
             {

src/content/ReactRedux-CSharp/Startup.cs

@@ -7,6 +7,7 @@ using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.SpaServices.ReactDevelopmentServer;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
 
 namespace Company.WebApplication1
 {
@@ -33,7 +34,7 @@ namespace Company.WebApplication1
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
-        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
             if (env.IsDevelopment())
             {