Revert "Revert "Use Random.Shared property (dotnet/aspnetcore#31453)" (dotnet/aspnetcore#31795)" (dotnet/aspnetcore#32221)

This reverts commit 068762619a.

Commit migrated from dotnet/aspnetcore@41fb256b7e

src/content/Angular-CSharp/Controllers/WeatherForecastController.cs

@@ -32,12 +32,11 @@ namespace Company.WebApplication1.Controllers
         [HttpGet]
         public IEnumerable<WeatherForecast> Get()
         {
-            var rng = new Random();
             return Enumerable.Range(1, 5).Select(index => new WeatherForecast
             {
                 Date = DateTime.Now.AddDays(index),
-                TemperatureC = rng.Next(-20, 55),
-                Summary = Summaries[rng.Next(Summaries.Length)]
+                TemperatureC = Random.Shared.Next(-20, 55),
+                Summary = Summaries[Random.Shared.Next(Summaries.Length)]
             })
             .ToArray();
         }

src/content/React-CSharp/Controllers/WeatherForecastController.cs

@@ -32,12 +32,11 @@ namespace Company.WebApplication1.Controllers
         [HttpGet]
         public IEnumerable<WeatherForecast> Get()
         {
-            var rng = new Random();
             return Enumerable.Range(1, 5).Select(index => new WeatherForecast
             {
                 Date = DateTime.Now.AddDays(index),
-                TemperatureC = rng.Next(-20, 55),
-                Summary = Summaries[rng.Next(Summaries.Length)]
+                TemperatureC = Random.Shared.Next(-20, 55),
+                Summary = Summaries[Random.Shared.Next(Summaries.Length)]
             })
             .ToArray();
         }

src/content/ReactRedux-CSharp/Controllers/WeatherForecastController.cs

@@ -26,12 +26,11 @@ namespace Company.WebApplication1.Controllers
         [HttpGet]
         public IEnumerable<WeatherForecast> Get()
         {
-            var rng = new Random();
             return Enumerable.Range(1, 5).Select(index => new WeatherForecast
             {
                 Date = DateTime.Now.AddDays(index),
-                TemperatureC = rng.Next(-20, 55),
-                Summary = Summaries[rng.Next(Summaries.Length)]
+                TemperatureC = Random.Shared.Next(-20, 55),
+                Summary = Summaries[Random.Shared.Next(Summaries.Length)]
             })
             .ToArray();
         }