misc: chore: Merge into pattern

src/Ryujinx.UI.Common/App/ApplicationLibrary.cs

@@ -1184,7 +1184,7 @@ namespace Ryujinx.UI.App.Common
 
                     using FileStream file = new(applicationPath ?? string.Empty, FileMode.Open, FileAccess.Read);
 
-                    if (extension == ".nsp" || extension == ".pfs0" || extension == ".xci")
+                    if (extension is ".nsp" or ".pfs0" or ".xci")
                     {
                         try
                         {

src/Ryujinx.UI.Common/Configuration/ConfigurationState.cs

@@ -1026,7 +1026,7 @@ namespace Ryujinx.UI.Common.Configuration
         {
             bool configurationFileUpdated = false;
 
-            if (configurationFileFormat.Version < 0 || configurationFileFormat.Version > ConfigurationFileFormat.CurrentVersion)
+            if (configurationFileFormat.Version is < 0 or > ConfigurationFileFormat.CurrentVersion)
             {
                 Ryujinx.Common.Logging.Logger.Warning?.Print(LogClass.Application, $"Unsupported configuration version {configurationFileFormat.Version}, loading default.");
 

src/Ryujinx.UI.Common/Configuration/System/Language.cs

@@ -1,5 +1,4 @@
 using Ryujinx.Common.Utilities;
-using Ryujinx.HLE.HOS.SystemState;
 using System.Text.Json.Serialization;
 
 namespace Ryujinx.UI.Common.Configuration.System

src/Ryujinx.UI.Common/Helper/SetupValidator.cs

@@ -96,7 +96,7 @@ namespace Ryujinx.UI.Common.Helper
                 string baseApplicationExtension = Path.GetExtension(baseApplicationPath).ToLowerInvariant();
 
                 // NOTE: We don't force homebrew developers to install a system firmware.
-                if (baseApplicationExtension == ".nro" || baseApplicationExtension == ".nso")
+                if (baseApplicationExtension is ".nro" or ".nso")
                 {
                     error = UserError.Success;