[Ryujinx.Input.SDL2] Address dotnet-format issues (#5385)

* 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

* Silence dotnet format IDE0052 warnings

* Address dotnet format CA1816 warnings

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

* Address most dotnet format whitespace warnings

* 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

* Add trailing commas, log errors instead of throwing and remove redundant code

src/Ryujinx.Input.SDL2/SDL2GamepadDriver.cs

@@ -7,8 +7,8 @@ namespace Ryujinx.Input.SDL2
 {
     public class SDL2GamepadDriver : IGamepadDriver
     {
-        private Dictionary<int, string> _gamepadsInstanceIdsMapping;
-        private List<string> _gamepadsIds;
+        private readonly Dictionary<int, string> _gamepadsInstanceIdsMapping;
+        private readonly List<string> _gamepadsIds;
 
         public ReadOnlySpan<string> GamepadsIds => _gamepadsIds.ToArray();
 
@@ -35,7 +35,7 @@ namespace Ryujinx.Input.SDL2
             }
         }
 
-        private string GenerateGamepadId(int joystickIndex)
+        private static string GenerateGamepadId(int joystickIndex)
         {
             Guid guid = SDL_JoystickGetDeviceGUID(joystickIndex);
 
@@ -44,10 +44,10 @@ namespace Ryujinx.Input.SDL2
                 return null;
             }
 
-            return joystickIndex + "-" + guid.ToString();
+            return joystickIndex + "-" + guid;
         }
 
-        private int GetJoystickIndexByGamepadId(string id)
+        private static int GetJoystickIndexByGamepadId(string id)
         {
             string[] data = id.Split("-");
 
@@ -118,6 +118,7 @@ namespace Ryujinx.Input.SDL2
 
         public void Dispose()
         {
+            GC.SuppressFinalize(this);
             Dispose(true);
         }