Use 'new' expression in places where the type is evident for content (#2590)

* Content.Client

* Content.Benchmarks

* Content.IntegrationTests

* Content.Server

* Content.Server.Database

* Content.Shared

* Content.Tests

* Merge fixes

Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>

Content.Server/GameObjects/Components/Markers/TimedSpawnerComponent.cs

@@ -21,7 +21,7 @@ namespace Content.Server.GameObjects.Components.Markers
         public override string Name => "TimedSpawner";
 
         [ViewVariables(VVAccess.ReadWrite)]
-        public List<string> Prototypes { get; set; } = new List<string>();
+        public List<string> Prototypes { get; set; } = new();
 
         [ViewVariables(VVAccess.ReadWrite)]
         public float Chance { get; set; } = 1.0f;