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.Shared/GameObjects/Components/Mobs/SharedOverlayEffectsComponent.cs

@@ -27,7 +27,7 @@ namespace Content.Shared.GameObjects.Components.Mobs
         public string ID { get; }
 
         [ViewVariables(VVAccess.ReadWrite)]
-        public List<OverlayParameter> Parameters { get; } = new List<OverlayParameter>();
+        public List<OverlayParameter> Parameters { get; } = new();
 
         public OverlayContainer([NotNull] string id)
         {