Rider static analysis (#433)

* Non-accessed local variable

* Merge cast and type checks.

* StringComparison.Ordinal added for better culture support

* Supposed code improvement in launcher. Remove unused code.

* Update ExplosionHelper.cs

Unintentional change.

* Optimized Import

* Add Robust.Shared.Utility import where it was deleted

* Other random suggestion

* Improve my comment

Content.Server/GameObjects/Components/Interactable/Tools/BaseTool.cs

@@ -1,8 +1,9 @@
-using Robust.Shared.GameObjects;
-using Robust.Shared.Serialization;
+// Only unused on .NET Core due to KeyValuePair.Deconstruct
+// ReSharper disable once RedundantUsingDirective
 using Robust.Shared.Utility;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Serialization;
 using Robust.Shared.ViewVariables;
-using YamlDotNet.RepresentationModel;
 
 namespace Content.Server.GameObjects.Components.Interactable.Tools
 {