[Ryujinx.Input] Address dotnet-format issues (#5384)

* dotnet format style --severity info

Some changes were manually reverted.

* dotnet format analyzers --serverity info

Some changes have been minimally adapted.

* Restore a few unused methods and variables

* Address dotnet format CA1816 warnings

* Address or silence dotnet format CA1806 and a few CA1854 warnings

* Address most dotnet format whitespace warnings

* Apply dotnet format whitespace formatting

A few of them have been manually reverted and the corresponding warning was silenced

* Add comments to disabled warnings

* Simplify properties and array initialization, Use const when possible, Remove trailing commas

* Revert "Simplify properties and array initialization, Use const when possible, Remove trailing commas"

This reverts commit 9462e4136c0a2100dc28b20cf9542e06790aa67e.

* dotnet format whitespace after rebase

* Remove redundant code, convert to auto-properties and fix naming rule violations

* Remove bogus change

* Address review feedback

src/Ryujinx.Input/IMouse.cs

@@ -8,7 +8,9 @@ namespace Ryujinx.Input
     /// </summary>
     public interface IMouse : IGamepad
     {
+#pragma warning disable IDE0051 // Remove unused private member
         private const int SwitchPanelWidth = 1280;
+#pragma warning restore IDE0051
         private const int SwitchPanelHeight = 720;
 
         /// <summary>
@@ -101,4 +103,4 @@ namespace Ryujinx.Input
             return new Vector2();
         }
     }
-}
+}